| Viruses differ from bacteria because they do not have cytoplasms or cell organels. |
| Finally, as noted above, gap junctions allow small molecules to move between the cytoplasms of adjacent cells. |
| Failure of mating pairs to mix cytoplasms during conjugation is diagnostic of a complete block in cell fusion. |
| Deciduosis of endocervix: inflammatory and papillary endocervical mucosa characterized by foci of decidual cells with regular nuclei and large, eosinophilic, glycogen-rich cytoplasms. |
| Alien cytoplasms and chromosomes have been introduced into wheat by cytologically monitoring the chromosomal constitution of backcross progenies in interspecific hybrids. |
| Nevertheless, starting with a collection of mammary cell nuclei and host egg cytoplasms derived from Scottish Blackface ewes, a number of fused couplets successfully formed embryos. |
