Research led by Oxford University have identified 12 specific areas of the DNA sequence that are related with the age at which we have our first child, and the total number of children we have during the course of our life, suggesting that there is a biological basis for reproductive behaviour.

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Research led by Oxford University have identified 12 specific areas of the DNA sequence that are related with the age at which we have our first child, and the total number of children we have during the course of our life, suggesting that there is a biological basis for reproductive behaviour.