基因相似更易成为朋友?

　　Canada's CBC carries a report saying: You may have more in common with your friends than you think. Research reveals that mates have a remarkable number of the same genes.

　　The study, which gives new weight to the saying 'birds of a feather flock together', found that pals share significantly more DNA than strangers.

　　Geneticists discovered that unrelated friends have a 1 per cent of genes that match – about the same as fourth cousins, who share great-great-great grandparents.