Question on Twins

On a 60 Minutes episode I watched called "Gay or Straight", the twins they interviewed each had a different orientation.

If you are familiar with Tegan & Sara (music), they are twin sisters and both lesbians.

So basically, I'm not really sure

 

I don't think there's any specific way to tell what sexual orientation will be...

I would love to have a different example BUT... Amanda and Michelle from Cycle 7 of ANTM were twins and one was gay and one was straight=]

So, as far as I can tel... there's no way to tell how sexual orientation will work out.

 

I came across a study in a book a while ago. They studied pairs of brothers of which one was gay. Of guys with identical twins who were gay, 65% were gay as well. The percentage was lower for non-identical twins, but still higher than non-twin brothers, or unrelated guys.

 

>>>Is it true if one twin has one sexual orientation the other will share that same sexual orientation.

I know one guy who's gay, and whose twin isn't. That's all it takes to say "No."

Lex

 

I think the likelihood of having a gay *twin* brother if you are also gay is higher than having a gay brother, but it doesn't always work that way.

 

Here are some articles on the studies done on twins:

http://query.nytimes.com/gst/fullpage.html?sec=health&res=9D0CE7DD143AF934A25751C1A967958260

http://worldpolicy.org/projects/globalrights/sexorient/twins.html

 

I have an identical twin who's definitely straight

 

I was surprised when my twin sis told me she was bi as well so i guess i'm in the minority.

 

one of my guy friends is gay, and his twin brother is straight... (or not out..)

but then, that would be saying that being gay is a genetic thing... (im not saying its not, but i dont know if i believe if it is either)

 

We all don't know whether is being gay/bi is actually a genetic thing or not.

It's all boil down to preferences. The word "preference".

It's like we write our stuff using L/R hand, uh... chocolate or vanilla or whatever. Do we have so much of a scientific explaination on why certain people like to hear rock music? We dunno.

In that case, every person is different, and have their own tastes. Even sometimes identical twins *can* be different in terms of preferences and choices.

 

I know a set of identical twins. One's gay, and the other's straight.

I'm gay, and my identical twin is straight (as far as I know).

 

I think that the reason why groups like AMSA and such support the notion that sexual orientation is determined by a combination of genetic and environmental factors is based on twin studies. My understanding is that there is a scientifically significant level of concordance in identical twins that both twins end up being of the same orientation. However, this certainly is not true in all cases, and scientifically significant does not even have to mean "a majority." I think the deviations from a 100% concordance are attributed to the unknown environmental factors that are believed to contribute to sexual orientation.

 

I heard that if one twin is gay then the other twin has a higher probability of being gay also but I don't know the exact percentage. I do know it is higher then just regular siblings. It's definitely not 100% I think the last I heard it was 65-70% but I'm not sure.

Just because one twin is gay doesn't mean the other is too.

 

wow we have alot of people that have twins on EC .
i wonder how it feels to be str8 and have an gay twin or the opposite

 

I am a twin. He is as straight at can be. Married 3 great kids! The funny thing is that when I come to the point where I tell my family, he is the one I am the most scared to death to tell.

 

I am a twin, fraternal. My twin is straight and I am gay. It goes further than that though. We are really total opposites. I am an art major he is a business major. I am very neat and he is sloppy. Very different. He knows I am gay but we never talk about it b/c he is uncomfortable, its been eight months since I told him but I think a part of him is still in denial. No idea why I am gay and he is straight.

 

More likely, but not definitive.

 

I know a pair of twins who are both questioning their sexuality / provisionally bi. But that doesn't prove that all twins are like that

 

if one twin is gay, there is a 75% chance the other twin is too (only true for males).

^ that's a true one. ^