New research on the Y chromosome shows that my jittery male friends are not paranoid; they are in an evolutionary shame spiral.
As the puny Y chromosome continues to shrink, the male of the species is doomed to extinction.
An artificial chromosome makes germline manipulation much, much easier; instead of having to peer through a microscope at an embryo.
He said eight athletes with XXY chromosomes.
Second, the speciation itself occurred in a more unusual manner that left a striking impact across (the female chromosome ) chromosome X.
Born with a rare chromosome abnormality that, as her grandfather John Kiely says, scrambled her brain, she needed round-the-clock care.