Scientists present the first ever full, high-resolution sequence of the Y chromosome of a Hereford bull. The research, more than a decade in the making, suggests that bulls' Y chromosomes have evolved dozens of copies of the same genes in a selfish attempt to make more males -- a move that is countered in the female-determining X chromosome.
from Latest Science News -- ScienceDaily https://ift.tt/3nI9P57
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