The role of genetics in timing and number of children

The role of genetics in timing and number of children

November 23, 2016

In a recent Nature Genetics article, we identified 12 DNA areas linked with the age at first birth and number of children ever born. Our paper includes an analysis of 62 datasets with information from 238,064 men and women for age at first birth, and almost 330,000 men and women for the number of children. Until now, reproductive behaviour was thought to be mainly linked to personal choices or social circumstances and environmental factors. However, this new research shows that genetic variants can be isolated and that there is also a biological basis for reproductive behaviour.

To view a film where we discuss this research, see:

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