Boy Or Girl? It's In The Father's Genes
Friday, December 12, 2008 - 00:36
in Psychology & Sociology
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.