can identical twins be boy girl or does it have to be boy boy and girl girl? i had an interesting coversation about this and now i have to have an answer. please help!!
2006-07-14 08:45:18 · 14 answers · asked by xaixai06 2 in Pregnancy & Parenting ➔ Other - Pregnancy & Parenting
identical twins have to be identical in every way, even their sex. If their sex is not the same, they are called ferternal twins.
2006-07-14 08:48:38 · answer #1 · answered by Amaya T 2 · 0⤊ 0⤋
Identical twins must be boyboy or girl girl. Identical twins develop from the same sperm and egg where as fraternal twins are 2 separate sperms and eggs. Fraternal twins can be girl/boy,girl/girl,or boy/boy. I have twin grandsons who are fraternal and look nothing alike.
2006-07-14 09:06:40 · answer #2 · answered by Danna C 2 · 0⤊ 0⤋
I have seen some TV shows that talked about girl/boy identical twins. The following web site has an article on it.
http://www.radessays.com/viewpaper.php?nats=MTAxMToyOjE,0,0,0,0&request=81881
there has been about four very rare cases of opposite sex identical twins due to genetic abnormality (Agnew, Klein & Robert, 19)
Hope this helps
2006-07-14 08:54:34 · answer #3 · answered by jmvc1998 2 · 0⤊ 0⤋
Identical sets of twins happen when one egg is fertilized and then it splits into 2 embryos. They are always the same sex.
2006-07-14 08:47:32 · answer #4 · answered by Heather 5 · 0⤊ 0⤋
Identical twins are the same sex, and look alike
Fraternal twins can be opposite sex or the same sex but look different
2006-07-14 08:48:42 · answer #5 · answered by GD-Fan 6 · 0⤊ 0⤋
If one was a boy and one was a girl they wouldn't be identical would they?
2006-07-14 19:05:08 · answer #6 · answered by mattsmom 2 · 0⤊ 0⤋
identical twins are always same sex, and fraternal twins are boy and girl, or if they are the same sex then they don't look alike.
2006-07-14 12:01:14 · answer #7 · answered by Anonymous · 0⤊ 0⤋
h b cuz i have all identical twins and they r boy gurl
2006-07-14 09:05:27 · answer #8 · answered by Anonymous · 0⤊ 0⤋
identical twins always have the same sex.
2006-07-14 08:49:43 · answer #9 · answered by Shyne_06 4 · 0⤊ 0⤋
no. Fraternal twins are that ones that are boy and girl...2 separate eggs fertilized
2006-07-14 08:48:32 · answer #10 · answered by Anonymous · 0⤊ 0⤋