Naked Science Forum

Life Sciences => Cells, Microbes & Viruses => Topic started by: chris on 28/09/2018 10:24:15

Title: Is the Y chromosome a mutated, shrunken X chromosome?
Post by: chris on 28/09/2018 10:24:15
Someone asked me today whether the Y chromosome is a mutated, shrunken former X chromosome?

Does anyone know?
Title: Re: Is the Y chromosome a mutated, shrunken X chromosome?
Post by: evan_au on 28/09/2018 11:12:33
Wikipedia suggests that the divergence of a single chromosome into X & Y chromosomes occurred something like 150 million years ago.
See: https://en.wikipedia.org/wiki/Y_chromosome#Origin