The science behind the Green Eyes

People are quite obsessed with unborn children - with the almost endless possibilities that they represent: how they will look, whom they will take after, what sort of nature they will have. Pregnant women are given endless advice and instruction about how they can influence certain things - eat plenty of vegetables and the child will grow up choosing carrots over crisps, read to your bump and the baby will possess a calm, gentle disposition. By my third pregnancy, after having had two girls, I grew quite used to being told how I should feel about my baby's possible sex and quite bemused by just how much people seemed to think my husband and I should have a preference, particularly about something over which we had absolutely no control. And that got me thinking: what about the babies whose parents do have an aspect of control? What if that control were unrestricted?