Talk:Twin
Ratio fraternal/identical
[change source]The page as I found it said 40% of all twins are male/female fraternal - I derived the other figures from that but I haven't checked it (yet). EstherWieringa 20:40, 5 February 2007 (UTC)
The page as I found it said 40% of all twins are male/female fraternal - I derived the other figures from that but I haven't checked it (yet). EstherWieringa 20:40, 5 February 2007 (UTC)[reply]