Creative genes

I have been wondering whether there is such a thing as a creative gene. After Kiran Desai recently won the Man Booker prize, it has been widely reported that her mother is Anita Desai who had been shortlisted for the same prize in the past. There are of course other authors who have writers as parents, Martin Amis being just one example, and children of musicians or artists who have inherited that gift.

Nobody in my family writes, but my mother used to paint well and my father is very musical. Both my sister and I are lacking these talents but we have dabbled in many creative crafts over the years. Maybe there is some sort of creativity gene which sometimes comes out differently from generation to generation?