How did varying chromosome numbers evolve?

How did humans end up with 46 chromosomes, and mice with 40?
29 March 2021
Presented by Eva Higginbotham


CGI images of DNA double helix


Listener Mattie asked "If humans have too many or too few chromosomes it can cause them to be infertile. So how did different creatures get different numbers of them? For example, humans have 46 chromosomes, but mice have 40." Eva Higginbotham asked genome evolution expert Hugues Roest Crollius...


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