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quote:Originally posted by elegantlywastedmore males are spontaneously aborted than females. Or so my Human Growth professor tells me
quote:Originally posted by rosyI think I heard more males succumbed to infant mortality too...But then, some at least of that is probably due to the sex-linked issue of men only having one X chromosome so not having cover against problems in those genes... the question suggests excluding "sex chromosome errors" but I rather doubt that's possible. There are probably loads of other factors but it's hard to tell what their relative importance would be...
quote:Is the spontaneous abortion thing to do with boys being more likely to be rejected by the mother's immune system (like the blood group thing?)