PONDERING whether a baby got mum or dad’s eyes may seem like idle speculation, but knowing which parent certain genes came from can tell you about your risk of disease. Some variants are even two-faced, boosting the risk if they come from one parent but cutting it if they come from the other.
It is already known that the same gene variant can behave differently depending on which parent it came from, due to a process called imprinting – which determines which of a parent’s genes are expressed in the child.
Now a team led by Kári Stefánsson…
