A South African geneticist has come up with images of what the Duke and Duchess’s unborn baby could look like both as a toddler and a teenager.
However, with dark genes being dominant, she estimates there is a good chance the baby, due in June, may inherit Kate’s dark hair.
The illustrations offer a representation based on genetic influences passed on by both parents.
Mother-to-be Kate kept a low profile at the start of her pregnancy, having been hospitalised in December with a form of acute morning sickness, called hyperemesis gravidarum.
However the 31-year-old, who recently returned from a family holiday in the Caribbean, was well enough to visit a South London rehab centre earlier this month.
Looking happy and well, the Duchess showed off the first signs of her compact baby bump in a grey belted MaxMara dress and confessed she was "nervous" about giving birth.