Boy or girl? It’s in the father’s genes

Boy or girl? It’s in the father’s genes

A study of hundreds of years of family trees suggests a man’s genes play a role in him having sons or daughters. Men inherit a tendency to have more sons or more daughters from their parents. This means that a man with many brothers is more likely to have sons, while a man with many sisters is more likely to have daughters.

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Source: Science Daily

 

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