How to use embryos in a sentence

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Sentence Examples A spokeswoman acknowledged that allowing embryos to be tested to save a seriously ill brother or sister was a complex issue. We then, suspended the embryos in 1 M urea and dissociated them by pipetting. The high disparity of young juveniles may seem surprising given the perception that embryos and larvae are typically more similar than adults. Fossilized embryos are rarely discovered, because their bones only begin to ossify late in development. The early embryos are then transferred to the uterus through the cervix, or into a fallopian tube. Research watchdogs were under pressure today not to give a team of scientists permission to clone human embryos. Sadly, society has become inured to the wholesale destruction of human embryos. The existing rules cited are designed to prevent the destruction of further embryos from which stem cells are extracted. Of the embryos that reached the morula stage, 174 were transplanted into pseudopregnant females, and 27 developed into progeny. A number of British fertility clinics are already testing embryos for inherited conditions like muscular dystrophy. This process is known as parthenogenesis, where unfertilized eggs develop into embryos without sperm. The embryos formed young plants with small true leaf-like leaves and roots. Within some of the eggs, we found fossilized embryos, the first embryos of a sauropod ever uncovered. Previous studies suggest inbred green-veined-orchid embryos are twice as likely to abort as those arising from cross-fertilized flowers. Early embryos are potentially a better source because all their cells are still unspecialised. He wore an elegantly tied white shirt, with ivory cufflinks shaped like pale embryos, and white stockings tapered with black satin slippers. Is it more ethical to cultivate stem cells from embryos created during in vitro fertilization? Furthermore, the firm would have been liable if the embryos had been destroyed due to their negligence, he said. Some of these embryos will be implanted in a woman's uterus, while others are frozen and stored. This mechanism offers osmotic protection to the embryos until late in their development. Show More Sentences Neither man will give his consent for the use of the embryos, which is required by law. This sponge broods embryos and larvae at all times, allowing year-round access to biological material. We repeated this analysis for a larger data set consisting of all females with brood pouches containing parthenogenetic eggs or embryos. Measurements are for dissected embryos for the early-oil, mid-oil, and desiccating stages, and for whole seed at the mature seed stage. When embryos are exposed to UV irradiation on the vegetal hemisphere they are completely ventralized and form no dorsal structures. Modern early-stage embryos behave similarly as their constant volume is divided and redivided. Serotonergic neurons arise early in gangliogenesis in pulmonate, prosobranch, and opisthobranch embryos. Only intact embryos with no starch or aleurone tissue adhering to the scutellar tissue were used. A large fraction of these embryos aborted on the germination medium and were not able to regenerate plantlets. Researchers from Saudi Arabia told scientists meeting in Spain how they had successfully produced embryos from air-dried sperm. Stem cells, taken from embryos, are the basic building blocks from which tissues and organs grow. The embryos, or pre-embryos, at fertility clinics are frozen at sometime between two and five days after fertilization. The nucleus must be taken from the blastula and gastrula stages of frog embryos. Many people believe that gene therapy and genetic screening of embryos is dangerous. Then, developing embryos burrow into honeycomb-like structures within the male's pouch. Again, we performed the tests on embryos, plus allantoic fluid from the eggs after five days. Beside surviving dehydration, the dwarf embryos were able to germinate and to develop into normal plants. In similar experiments, scientists in Spain have produced live ibex kids from ibex embryos implanted and gestated in domestic goats. Females are ovoviviparous, retaining yolked embryos without nourishing them. The use of embryonic stem cells, however, is clouded by the ethical issues that surround the use of cells harvested from early human embryos. Show More Sentences At the end of late embryogeny, somatic embryos were already differentiated, and the width of the embryo approximated its length. The numbers of explants showing germination of zygotic embryos, callus formation and somatic embryogenesis were recorded every 4 weeks. Wilmut and his team insist they will not allow the cloned embryos to develop beyond an early stage. Another myth is the claim human embryos go through a fish-like stage and display gill slits. And the construction of human-animal hybrid embryos pushes the yuck factor right up to the limit. At the first stages of development, the availability of embryos results from a combination of main shoots and primary tillers. Unilateral ovariectomy in rabbits doubles the ovulation rate in the remaining ovary and the adjacent uterine horn is crowded with embryos. This may be illustrated by the gill slits in the embryos of higher vertebrates like reptiles, birds and mammals. The earlier law banned practises such as implanting human embryos inside animals for gestation. In previous studies of waterfowl, we used field candlers to age embryos in eggs because candlers are a rapid, simple, and accurate method. It urged a ban on any use of human cells in chimps and other primates, however, as well as the introduction of animal cells into human embryos. Scientists were harvesting these stem cells from embryos left over from IVF treatments or using aborted embryos. However, the process is controversial because many stem cells are harvested from discarded embryos. The embryos were then inserted into female mice that gave birth to mice with this genetic defect. She is particularly interested in learning how other labs increased their success rate harvesting stem cells from early embryos. However, for rheas living in subtropical areas, nest attention could also avoid egg temperatures increasing up to lethal level for embryos. Eventually these embryos succumbed due to the lack of correct blood flow with two hearts pumping into the same set of blood vessels. This antibody labels the nuclei of the male embryos, revealing a single subnuclear spot that corresponds to the X chromosome. Four grams of embryos were homogenized and oil was extracted in boiling petroleum ether. In apomictic plants, embryos develop parthenogenetically from unreduced somatic or gametophytic cells. Show More Sentences But genetic tests indicated the Koreans very likely had true embryos, not parthenotes. Maternal apomictic embryos develop from a somatic cell within the ovule or from an unreduced embryo sac derived from the megaspore mother cell. Thirty-five embryos either were unanalyzable or had no dividing blastomeres. Unfortunately parthenotes don't side-step all objections to creating human embryos as a source of stem cells. He attributed increased mortality to inefficient incubation of enlarged clutches, which resulted in more dead embryos. Scientists said yesterday that they had grown an unlimited supply of eggs from embryonic stem cells taken from both male and female embryos. Double-mutant embryos aborted at various stages of development and no double-mutant seedlings were obtained. But the particles eventually coalesced into boulder-size bodies, some of which ultimately merged to make planet-size embryos. That is, there aren't really very clean answers about when embryos should be considered persons, with all the attendant rights. They then inserted an extra bovine protein gene taken from a cow cell into the embryos. This enables scientists to test DNA in embryos before they are implanted for genetic abnormalities. The carbohydrate treatments during the maturation period also affected the ability of the embryos to develop into plants. The clauses relating to hybrid embryos and saviour siblings are expected to pass but the scrapping of a requirement for a father could fail. Samples of roots, shoots, coleoptiles, leaves, whole seeds, endosperm, and embryos were taken at the times indicated in the Results. More posterior head skeletal structures and the tentorium do not develop in these embryos. Normally occurring embryonic cell death is not present in wild-type blastoderm stage embryos. All three of these birth control methods clearly prevent fertilised embryos from implanting in the uterus. The embryos are incubated in the laboratory for an additional two to four days and transferred to the female partner's uterus. The viruses rapidly kill off the chick embryos normally used in the vaccine production process. Koalas are unusual among marsupials in that they briefly form a placenta during the gestation of their embryos. Show More Sentences Other embryos were incubated directly in the Petri dishes for germination at a range of different temperatures. It is crucial for the normal development of the nervous system and the growth of blood vessels in human and other animal embryos. The new embryos are grown in an incubator for several days and then implanted into recipient females. It is exceptionally rare for an infertile couple to make use of all the embryos that result from the procedure. The embryos of imbibed seeds had a water content six times that of dry seeds. The cuticles show different alterations of segmentation with a stronger effect on late-stage embryos. High temperatures during this stage of cotton development caused excessive abortion of bolls and seed embryos. Lab mice and chick embryos infected with the virus died quickly, and it also grew rapidly in cultures of human lung cells. Last night the House of Lords debated a proposal to extend research on human embryos. Such a mutant megagamete could participate in fertilization with wild type pollens and sometimes set aberrant seeds with twin embryos. They are a rare form of identical twins, which are created when a fertilised egg splits into two embryos. To address this, we used a time-lapse imaging technique to directly measure cell cycle parameters in living embryos. The legislation would not allow federal funding for embryos created expressly for research purposes. It would also not affect the anonymity of those who have already donated sperm, eggs or embryos to help infertile couples. However, pigmented eyespots are visible in wild-type larvae and late-stage embryos. Consistent with these findings, Sxl-Pe is not activated in germ cells of blastoderm embryos. These embryos had organized root meristems and apical shoot meristems flanked by the developing cotyledons. We have used experimental manipulation of chick embryos to test the causal role of Hox genes in patterning derivatives of the paraxial mesoderm. The number of embryos developing an epicotyl was determined after 9 weeks in germination. Drying rates also affect the desiccation tolerance of somatic embryos and immature zygotic embryos or seeds. Show More Sentences Currently, stem cells used for research largely come from embryos leftover from fertility clinics. The original embryogenic cultures were obtained from leaf explants and the somatic embryos were multiplied either directly or via callus. Interspecific heteroplasmic mice were also produced by microinjection of somatic mitochondria into pronucleus-stage embryos. Thus, unlike totipotent single-cell embryos, pluripotent embryonic stem cells are specialized cells that have limited developmental capabilities. As starting material they used normal zygotic embryos from which callus cultures were established. He surmised that not all of these embryos could come to maturity in the same host without killing themselves and their host by overpopulating. This usually results in increased ovulations and an increase in transferable embryos. In time, the growing embryos will accumulate enough mass to ignite and explode out of their cores like baby birds busting out of their eggs. When couples undergo IVF in hopes of conceiving a child, the procedure nearly always creates more embryos than will be used. In addition to the embryos and eye, the fossil find includes portions of a snout plus jawbones, skull bones, cheekbones, and teeth. Assays performed in Drosophila S2 cells and Drosophila embryos demonstrated the transpositional activity of Herves. If a couple conceives several embryos in vitro, one without the disease-carrying gene can be chosen and implanted in the mother's womb. Among the remainder were embryos that arrested at various stages of development with many having an inhomogeneous density of nuclei. Radicles or plumules were excised from the embryos and similarly incubated. Once an infertile woman has successfully birthed a child, then she and her partner may be asked to donate the unneeded embryos for research. Polyembryony was further characterized by determining DNA content and fingerprints of embryos obtained from 157 polyembryonic kernels. Immature embryos fixed in acetic alcohol were rinsed in distilled water for 10 minutes under vacuum conditions. Weak png mutations permit several transient S-M cycles to occur, producing embryos with a characteristic phenotype of multiple polyploid nuclei. Somatic embryos at late developmental stages were gently extracted from agarose layers with forceps. Perhaps his most elegant experiment was to make aggregation chimeras of embryos from high, control, and low lines. Show More Sentences After development to a small blastodermic disc, the embryos enter a state of diapause that lasts approximately 7 months. In extant amniotes, however, the VN organ is situated too close to the midline to leave a mark on the maxilla, as is the anlagen of the organ in crocodilian and avian embryos. The phenotypic analysis of fru mutant embryos along with fru's temporal and spatial expression pattern suggests that the fru gene functions during axonal outgrowth. The reconstituted embryos are extremely fragile, and transferring them to the uterus of the surrogate mother who is to carry them to term is a matter of great difficulty. Five more embryos were implanted into a single surrogate mother. If the parents decide against another transfer and implantation, the created embryos remain in suspended animation for as long as they remain frozen. Whenever possible, isolation via the propagation of virus on chorioallantoic membranes of chicken embryos should be used as the definitive diagnosis of choice. Medaka P is strongly expressed in the eyeball of embryos and adults, where melanin is produced in the choroid membrane and retinal pigment epithelium. The embryos of all sexually reproducing organisms develop from a single cell, formed by the fusion of a male and a female gamete at fertilization. Already cloning embryos, using aborted foetuses, gene swapping and gene therapy will mean the long term impacts will be immense on our everyday living. In all four cases the embryos produced by mutant females had a small number of apparently polyploid nuclei rather than the normal, large number of diploid syncytial nuclei. In the first attempts to achieve embryo-to-plantlet conversion, 16-week-old cotyledonary stage embryos were selected for use as experimental material. Brown trout embryos were sampled from wild redds after using a VHR camera to observe and record the courtship behavior of adults in selected areas of the River Sella. The functions of the brood, incubating and marsupial pouches should be further investigated in relation to their osmoprotective and perhaps also trophic roles for the embryos. Plants, gems, embryos, dancers and the evolution of letterforms, weapons and tools are only a few of the many associations inspired by these pared-down irregular forms. We were not able to determine the genotype of these aborted embryos. She has chaired various government committees of enquiry, is a life peer and has recently voted on an Order legalising therapeutic cloning of human embryos. This is not using aborted embryos, this is done by cell lines. The results show that early fertilization leads to the formation of apomictic embryos while fertilization at anthesis favours the formation of sexually derived embryos. It is now illegal to artificially implant cloned embryos in a woman. Show More Sentences The cells of the fertilised eggs multiply, growing into embryos in an incubator adjusted to the temperature and carbon dioxide levels of the woman's body. Callus was formed on cotyledons, hypocotyls, and radicles of embryos. The made-to-order infants, from different families, were screened and selected when they were still embryos to make sure they would be compatible donors. Another type of apomictic development has been reported to occur in the gymnosperm Cupressus dupreziana, where embryos develop from unreduced pollen grains. The pathology of internal organs and skeleton in embryos was recorded. However, if several embryos do progress, it can be dangerous to implant them all, since that can lead to multiple pregnancies. To create the banteng, scientists inserted DNA from the dead banteng's skin cells into egg cells from closely related domestic cows, producing embryos. The resulting embryos were allowed to develop in laboratory dishes for several days before the scientists cannibalised them to extract embryonic stem cells. Using explanted tissues from embryos of different ages, it has been shown that mesoderm induction is almost complete by the time gastrulation starts. In the context of embryos in the womb, this is manifestly untrue. Blood products, sera, sperm, oocytes and embryos are not included. This can cause broken nerve tracts and might also correct the abnormal lateral positioning of the longitudinal tracts to some extent in these mutant embryos. John McCain voted for federal funding in 2007, thundering about thousands of frozen embryos. Two to three embryos are routinely transferred to the uterus. Despite the far-ranging scope of earlier work, aspects of germination and conversion physiology, and biochemistry in somatic embryos remain unexplored. Immature embryos were transformed with these vectors by biolistics. In addition, important advances have been made in recent years in the application of large-scale bioreactors that can produce somatic embryos in liquid media. Out of 180 embryos processed, 109 had at least one analyzable metaphase. He created mouse embryos with DNA lacking in CDX2, the gene responsible for forming the trophectoderm, or skin on a blastocyte, which is the early form of an embryo. You had mentioned that twins can develop when the inner cell mass splits in the blastocyst and forms two embryos enclosed in a common trophoblast. Show More Sentences Currently the preimplantation selection of embryos is restricted to cases of serious diseases, but the authors urged caution in the future extension of this application. She started by excising the embryos from immature wheat kernels. Enhanced levels of expression are seen in older embryos adjacent to the segmental involutions and in the salivary glands, proventriculus, and somatic musculature. Some snails, sea slugs, and worms embed embryos in gel, often in the form of thin strings or beautiful coiled ribbons that undulate gracefully in the current. If I was very, very lucky, when he found out we hadn't actually snitched any embryos, he'd demand to know what we had been doing here, and then I was safe. Until now, clinics have been allowed only to screen embryos for untreatable conditions or conditions that affect children, such as Huntington's disease and cystic fibrosis. Reabsorption of these minute embryos due to lack of nidation will lead the dog owner to believe that conception did not occur when in fact it did. Depending on environmental conditions, it can shift from viviparous to oviparous reproduction, with production of encysted and dehydrated embryos. The creatures in question are evenly spaced and their spines are curved, typical of the position and posture of embryos in present-day viviparous lizards. Unionid embryos spend the first stage of development in the marsupial portion of the female unionid's gills, where they develop into glochidia, the parasitic stage. He continues with a discussion of the benefits of discarding nonviable embryos, including those that may be premature or result in low birthweight. Some lines were barely fertile, as might be expected if loss of the major autosomes was occurring at a high rate, resulting in the production of nonviable aneuploid embryos. Diploid zygotes created by combining a male and a female pronucleus gave rise to viable embryos, but combining two male or two female pronuclei did not. Meiotic spindle poles of mutant embryos are not as well focused as wild type, and meiotic failure often leads to multiple maternal pronuclei as compared to wild type. Morphogenesis in animal embryos can also involve extensive cell migration. Animals which are currently threatened with extinction may be saved by the use of frozen embryos and IVF technology which uses related species to gestate embryos. Researchers funded by government money could not harvest any more stem cell lines from embryos, but they could use those cell lines that had already been made. In field observations, an average of 1200 embryos were hatched. Cell lineage analyses, mainly conducted on annelidan. and molluscan embryos, suggested that the ultimate fates of blastomeres are tremendously conserved. The microscope is also used for morphological assessment of oocytes, pronuclear stages and embryos. Show More Sentences Chimeric embryos are made by injecting cells or genetic material from one species into the embryo of another. Whether morphological abnormalities of the oocyte influence cryosurvival and further development of derived embryos is not well known. In situ hybridisations were performed on devitellinised embryos still wrapped around the yolk and on embryos with the yolk dissected away. Parthenogenesis is a natural form of reproduction in which growth and development of embryos occur without fertilization. Fertilized eggs become zygotes, which develop into sporophyte embryos inside the archegonia. Some have been described as animal embryos and eggs, although some may represent the remains of giant bacteria. Some viviparous fish exhibit oophagy, in which the developing embryos eat other eggs produced by the mother. Intrauterine cannibalism is an even more unusual mode of vivipary, in which the largest embryos eat weaker and smaller siblings. For bat embryos, apoptosis only affects the hindlimbs, while the forelimbs retain webbing between the digits which form into the wing membranes. The nutlike seeds have straight embryos, flat cotyledons, and soft fleshy endosperm that is oily. The third type are human transgenic embryos, made by injecting a segment of animal DNA into a human egg. Of the 10 embryos subjected to array CGH, 2 failed to amplify, 2 were euploid, 4 were aneuploid and 2 had unbalanced translocations. Expression of dehydrin-like proteins in embryos and seedlings of Zizania palustris and Oryza sativa during dehydration. Both human and mouse embryos develop from a fertilized egg, or zygote, that splits into two cells, then four, eight, 16 and so on. Three-fourths of zygotes or early embryos are naturally aborted, largely because of genetic defects. As the zygotic embryos are the main site of aescin accumulation, horse chestnut seeds are the sole industrial source of aescin. And the Kemps are eagerly awaiting next spring's batch of calves, which will include a number of calves imported from Canada as embryos. Luteotrophic influence of early bovine embryos and the relationship between plasma progesterone concentrations and embryo survival. However, frozen embryos were associated with increased risk of macrosomia for IVF and ICSI babies. The number of embryos or blastocysts transferred in each cycle was captured, but embryo and blastocyst transfers were not reported separately. Show More Sentences Contrasting accumulations of calcium and magnesium in seed coats and embryos of common bean and soybean. Experimental observations on the development of ectoderm free mesoderm of the limb bud in chick embryos. One, argued by Xiao and others, is that the fossils are of metazoan embryos. The myofilament lattice collapse in these embryos has been analyzed by immunofluorescence with antibodies to myosin A and actin. Zygote and morula stage embryos possess a totipotency for generation of a whole organism. In that procedure, researchers make cloned embryos and then harvest stem cells from them for growing specific tissues. Alcohol exposure alters DNA methylation profiles in mouse embryos at early neurulation. The study shows that high quality human embryos secrete a chemical, trypsin, which renders the lining of the womb supportive of implantation. In Kenya, zoo researchers have implanted embryos from bongos, a rare antelope, into the more common eland. In one study, Hcy-thiolactone was reported to be nonteratogenic in mouse embryos. The others are asexual, nucellar embryos with the same genotype as the parent tree. In their first conventional ICSI attempt, 26 oocytes were collected, 3 embryos were transferred and following OHSS, she had negative P hCG value. Eastern Bluebird and Gadwall have all been documented producing natural twin embryos. Ovoidal conceptuses were recovered from the uteri of four pigs with SCNT-derived embryos. Staging of gastrulating mouse embryos by morphological landmarks in the dissecting microscope. Fgfr1 null mutant embryos die during gastrulation and segmentation, while homozygous embryos of Fgfr2 knockout die before gonad formation. Drastic expression change of transposon-derived piRNA-like RNAs and microRNAs in early stages of chicken embryos implies a role in gastrulation. Embryos were carefully stripped off the pleopods and then two random samples of 250 embryos were counted. Orchid seeds are dustlike, consisting of thin seed coat and tiny spherical embryos with no endosperm. Pronuclear location before the first cell division determines ploidy of polyspermic pig embryos. Show More Sentences The researchers used polyspermic embryos, which result when more than one sperm penetrates an egg. Growth retardation of inner cell mass cells in polyspermic porcine embryos produced in vitro. As a case in point, Suadeau offered the term pre-embryo, which he said was coined in England in the 1990s to justify research on human embryos. Advances in production of embryos in vitro from juvenile and prepuberal oocytes from the calf and lamb. One problem is that female dogs go into estrus, which is the only time embryos can be implanted, only every 6 to 12 months. The effects of moderate hypoxia and moderate hypoxia plus hypercapnea on cardiac development in chick embryos. QsHUB1 and QsHUB2 showed a transient increase expression from white callogenic structures and globular embryos to immature cotyledonary embryos. Proteomic analysis of the extraembryonic tissue from cloned porcine embryos. Trichostatin A improves the development of rabbit rabbit intraspecies cloned embryos, but not rabbit-human interspecies cloned embryos. Effects of photoinduced toxicity of fluoranthene on amphibian embryos and larvae. Cloning of human preimplantation embryos by separating blastomeres or dividing blastocysts, followed by transfer. For day 7 embryos derived from parthenogenetically activated, zonae pellucidae were removed by pronase treatment. Differential H4 acetylation of paternal and maternal chromatin precedes DNA replication and differential transcriptional activity in pronuclei of 1-cell mouse embryos. In this experiment, the team surgically removed donor embryo eye primordia, marked with fluorescent proteins, and grafted them into the posterior region of recipient embryos. There are also other terms that are used in the descriptions of cycad, seeds and embryos that need clarification such as endotesta, perisperm, epicotyl and hypocotyl. Somatic cells that were cultured for periods of eight and twenty-two days were fused with enucleated oocytes to produce the embryos that developed into the two litters. They were used to create multicellular structures called embryoid bodies, which have some of the characteristics of early embryos and the beginnings of differentiated tissue. The cells had been obtained from polyspermic embryos that had no chance of implanting in the uterus and that ordinarily would have been discarded. She told me her goal was to raise awareness of SB-1433, more commonly known as the Oklahoma Personhood Bill, which would have granted full personhood to embryos. Although healthy looking in appearance, both the SCNT embryos and parthenote controls failed to develop into blastocysts, because the wrong culture media were being used. Show More Sentences In addition, NIH does not plan to fund research on embryos created specifically for research or on stem cells derived by research-cloning techniques or by parthenogenesis. Hox paralog group 2 genes function to pattern structures derived from the hindbrain and pharyngeal arches in the developing heads of animal embryos. She served as the Laboratory Supervisor and Chief Cryobiologist at Boston IVF, and was instrumental in producing the first birth from frozen embryos in Massachusetts. From 1993 to 2002, she was at Bar Ilan University, as a Teaching Assistant and a Research Assistant where she was involved in the ontogeny of transient DRG of chick embryos. We emphasize that all the females that we dissected contained a single brood of developing embryos, indicating the lack of superfetation in this species. When Fisher and researchers at a fertility clinic examined unused human embryos donated for research, they found that human trophoblasts make L-selectin. In the current study, messenger RNA will be obtained from cardiac tissue of embryos that have been treated with 100nm of ATRA in the neurula stage of development. Safe and effective federally approved vaccines grown from animal cells or chick embryos are available for all but chicken pox, hepatitis A, and rubella. Among the analyzed embryos, simple aneuploidy involving single chromosome anomalies was more common among embryos that developed into blastocysts and morulas. It's controlled by molecules called morphogens, which form concentration gradients along the head-to-tail axis, or other axes, of developing embryos. A combination of non-teratologic doses of the two drugs often increased the incidence of embryos with defective neural tube closure and somite formation. Ellie, Georgie, Jessica and Holly are monochorionic quadruplets, formed when one fertilised egg splits four times, creating identical embryos sharing the same placenta. Last night, members voted by a majority of 192 for a change in the law that will allow scientists to clone embryos up to 14-days old and cannibalise them for stem cells. Biopsied embryos survive freezing much less well than intact embryos, and some evidence suggests embryos that survive the biopsy are not as good at implanting in the womb. The biopsied embryos were transferred into 25 estrus synchronized does, two embryos per recipient, except one recipient was transferred three embryos. Lamnid sharks are ovoviviparous and nourish their embryos by oophagy. Effects of atrazine on embryos, larvae, and adults of anuran amphibians. Atlas of oocytes, zygotes and embryos in reproductive medicine. Oospheres are fertilized by antherozoids, thence developing into embryos. The hindgut matrix in prehatching stage 19 embryos consists of a trilayered electron dense lamina, subjacent electron dense material and the innermost lucent layer. Show More Sentences The preserved embryos from China and Siberia underwent rapid diagenetic phosphatization resulting in exquisite preservation, including cell structures. In such species the mother retains the eggs and nourishes the embryos. It is unlikely to get monospermic embryos in blastocyst stage. Because each egg and each sperm of a fraternal zygote contain slightly different genetic material, these two embryos do not have identical genetic makeups. Furthermore, in certain species having polyembryos development, all the embryos that have develope from a single fertilized egg are of the same sex. Exposure of mouse, rat, or chicken embryos to Hcy-thiolactone causes increased lethality, growth retardation, blisters, and abnormalities of somite development. Diazinon and carbaryl induce micromelia and abnormal feathering in hen eggs, but different skeletal defects have been noted for diazinon in bobwhite quail embryos. The findings suggest that smoking cannabis may lead to miscarriages or ectopic pregnancies, caused by embryos developing outside the womb in the fallopian tube. Stem-cell research is no exception, with proponents lauding its possibilities and opponents condemning it as eugenic or worse due to its use of human embryos. Examples from Classical Literature Females of Peromyscus are known to reabsorb embryos when conditions are unfavorable for continued pregnancy. Thus vertebrate and annulate embryos agree in certain points at the time of the formation of the primitive streak. In Torpedo embryos the head-cavity is much smaller, and atrophies earlier than in the embryos of Pristiurus and Scyllium. Whilst the embryos were still in the egg Leuckart could see no ciliary motion. In the embryos of higher Vertebrates it closes in the centre, the point of concrescence forming the tympanic membrane. The main trunk is however never completely aborted, as in the embryos of other types, but remains as the ductus venosus Arantii. Hooklets and scolices of Tnia echinococcus and embryos of Filaria sanguinis hominis have been met. For at last they become an Acinetan or a gregarine, exactly like the parent-cell from which they arose as embryos. This specificity of embryos was affirmed with even greater confidence by Sedgwick in a paper critical of von Baer's law. As it happened, a couple of carrier embryos were at just about the right stage. These are presented to us when we study the early stages in the development of the embryos of the Metazoa in general. Krause maintains that all the other embryos shewing an allantoic stalk at an early age are pathological. It develops in elasmobranch embryos in two sections, one situated in the head, and the other in the trunk. Thus in erythronium and Limnocharis the fertilized egg may form a mass of tissue on which several embryos are produced. As to the nematoids, which were filariform, they neither corresponded in size nor structure with my strongyle embryos. The embryos are ciliated, unlike those of many of the ectoparasite worms. Study co-author Gry Sagebakken suspected that developing embryos were possibly taking nutrients from one another. Gosner KL A simplified table for staging anuran embryos and larvae with notes on identification. We know what a masquerade all development is, and what effective shapes may be disguised in helpless embryos. Kinney includes the embryos because of the Han concept of fetus education. Find more words! 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Words that rhyme with embryos What is the adverb for embryos? What is the adjective for embryos? What is the noun for embryos? Use our Sentence Generator Nearby Words embryonic stage embryonically Embryonic embryonic embryonated embryonal embryotomy emburden emc emcee emceed emceeing 7-letter Words Starting With e em emb embr embry embryo