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The work by Corry Gellatly, a research scientist at the university, has shown that men inherit a tendency to have more sons or more daughters from their parents. The gene, which Mr Gellatly has described in his research, could explain why this happened. Journal Reference : Gellatly et al. It shows that although the gene has no effect in females, they also carry the gene and pass it to their children. Story Source: Materials provided by Newcastle University. As a result, those sons may also have only sons as shown.

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