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Reply to "It is a miracle/ blessing when males survive and reach adulthood with minimal or no disability"
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[quote=Anonymous][quote=Anonymous][quote=Anonymous] This part is just chromosomal. If there is a problematic error on the Y chromosome, the mother's DNA is less likely to be able to compensate for it than if the father had contributed a second X chromosome.[/quote] Interesting. So have male fetuses always been at greater risk or is this something that has increased over time?[/quote] The lack of a second x chromosome has always been true. (I actually know a man who has an extra x, so he's xxy instead of xy. However, that condition has left him sterile.) Males of all species are likelier to be genetic outliers. If a given mutation makes a male more successful & attractive, it's easier for him to spread his genes far & wide. Whereas a more successful female is more limited by the effort of gestation, and won't have such a plethora of kids.[/quote]
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