Do you think that some men have more x than y sperm (and visa versa) as opposed to a 50/50 mix?
Is that a reason why some couples end up with more or all of the same gender of children? Or do you think it is a purely timing thing?
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Do you think that some men have more x than y sperm (and visa versa) as opposed to a 50/50 mix?
Is that a reason why some couples end up with more or all of the same gender of children? Or do you think it is a purely timing thing?
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