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Assignment of SRY, ANT3, and CSF2RA to the bovine Y chromosome by FISH and RH mapping

Wan-Sheng Liu1, F Abel Ponce de León

  • 1Department of Animal Biotechnology, College of Agriculture, Biotechnology, and Natural Resources, University of Nevada, Reno, Nevada 89557, USA. wsliu@cabnr.unr.edu

Animal Biotechnology
|December 15, 2004
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The Y Chromosome Determines Maleness02:19

The Y Chromosome Determines Maleness

The Y chromosome is a sex chromosome found in several vertebrates and mammals, including humans. In addition to 22 pairs of autosomes, the human males have one X chromosome and one Y chromosome. In these organisms, the presence or absence of the Y chromosome determines the development of male traits.
Evolution
Around 300 million years ago, the two sex chromosomes diverged from two identical autosomal chromosomes. Over time, the Y chromosome has lost most of its genes, shrinking in size. Today,...