BOTH
the twin gene is passed through the mother and depending if the egg splits (identical twins) or if there are 2 fertilized eggs it can be by cance or it can be genetic.
2007-01-07 18:01:25
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answer #1
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answered by Anonymous
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Only fraternal twins are hereditary. Those are the type of twins that are passed on through genetics on the mother's side of the family.
Identical twins are a freak of nature type of thing. They can happen to anyone, at any age, without any history. There are some things that moms of ID twins seem to have in common (age, height, nationality,previous pregnancies, etc) but that isn't 100%. I had my ID girls at 22. I don't meet the age, or the height or any other statistic. The only one I did match was that it was my 3rd pregnancy.
2007-01-09 05:13:25
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answer #2
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answered by totsandtwins04 3
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Nope sorry it is not hereditaty buy pure chance. What happens is either (1) sperm fertilize two eggs or (2) after fertilization the embryo splits into two that is considered identical twins. I is a little cooler because the probiblity of this happining is not very high but things similar to this have happened in my family. My great grandma my grandma and my sister share the same birthday.
2007-01-07 18:09:43
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answer #3
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answered by Anonymous
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Some of both. The incidence of twins is a little higher in those with a family history of twins, but not by that much.
2007-01-07 18:09:25
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answer #4
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answered by Anonymous
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I think it is somewhat hereditary and somewhat just by chance. It's crazy because I might be the one to have the twins in my generation of twins.
2007-01-11 16:41:06
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answer #5
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answered by Ericqua 4
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Many cases of twins are merely by coincidence. yet sure, if there are twins on your relatives, you've a larger danger of twins. earlier fertility remedies, the possibilities of having twins change into a million in ninety. the possibilities of having twins if there change into really a million set of twins on your historic past change into a million in 80 (it truly is the present cost of twins as a results of fertility remedies). If there is more suitable than a million set of twins, your possibilities improve extensively, inspite of the indisputable fact that it also relies upon on why. for instance, in my relatives, there's a nil danger of twins if you're lower than 38. so some distance, there's a one hundred% danger of having multiples if you're over 38 as each female in my relatives has had twins over 38 (such as a organic set of quads). it truly is age appropriate twinning and also you do not even ought to have twins on your relatives historic previous to have that. they have self assurance this is because the egg shell is thinner in older women human beings causing the egg to separate.
2016-12-02 00:00:42
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answer #6
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answered by ? 4
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DEAR IT IS DUE TO FAMILY HISTORY ON BOTH SIDE YOUR MOTHER AND FATHER GRAND FATHER AND GRAND MOTHER AND THE PEOLPE BEFORE THEM AND NOW THIS IS NO LAUGHING MATTER AND IT IS NOT A FLUKE
TAKE CARE WITH LOVE AND HAPPY NEW YEAR
2007-01-07 17:53:43
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answer #7
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answered by ? 7
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its hereditary 3 times for me. that's enough wouldn't you say?
2007-01-07 17:57:27
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answer #8
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answered by Anonymous
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Its hereditary.
2007-01-07 17:51:21
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answer #9
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answered by Anonymous
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