2006-10-13 07:50:24 · 10 answers · asked by ? 6 in Science & Mathematics ➔ Biology
If it was then natural selection would surely mitigate against it - fitness to breed and all that.
2006-10-13 08:43:54 · answer #1 · answered by Anonymous · 0⤊ 1⤋
No proof, but some evidence that genes do have some influence. For such a complex subject, there isn't likely to be one single cause. More likely, there is a genetic potential making it more likely, but not absolutely certain.
2006-10-13 07:54:42 · answer #2 · answered by lisa_laci 3 · 0⤊ 0⤋
I was in biology class in high school when I learned about heredity, included how sex tendency transferred from parents to their children. Sexual genes brought by X and Y chromosome; XX for female and XY for male. the chromosome is transferred through cell seperation; from 1 into 2 cells, that happens in the zygotes forming phase. sometimes, the cell seperation process isn't goes well, and made uncertain combination such as XXY, or even -- (the zygote doesn't have sexual chromosome). It causes differential sexual preferences of the person.
2006-10-13 08:33:59 · answer #3 · answered by Peter Pan Something 1 · 0⤊ 0⤋
You can describe that homosexuality is genetic but some scientist do believe that there are some genes in our body that can affect our mood not like the xmen but there are some genes that haves the capability to fight virus and disease. i believe that there are such genes coz every persons gets related to everybody wether he likes him/her or not
2006-10-13 08:05:26 · answer #4 · answered by joel 1 · 0⤊ 0⤋
There is proof that is a combination of horomonal, environmental, and genetic factors. You should look that into websites with good reputations so you can get a more thorough answer.
2006-10-13 07:59:28 · answer #5 · answered by cynical 6 · 1⤊ 1⤋
There's no set scientific proof but it's obvious it is in certain cases genetic...
2006-10-13 07:57:30 · answer #6 · answered by Love always, Kortnei 6 · 0⤊ 1⤋
no but i learned in psych that certain conditions in the womb may cause a predisposition, and a second, third, fourth, etc child is more likely to be homosexual than the first
2006-10-13 11:32:51 · answer #7 · answered by TradeMark 2 · 0⤊ 0⤋
i don't know about "scientific" proof - but in my family - I have three cousins that are Out. all are on my dad's side - from different siblings. 2 from different brothers and 1 from his sister....
2006-10-13 08:01:08 · answer #8 · answered by poosoup 1 · 0⤊ 0⤋
There is no proof. It's just a choice.
2006-10-13 07:59:21 · answer #9 · answered by Jasmine 5 · 2⤊ 2⤋
no
2006-10-13 08:00:15 · answer #10 · answered by astronomychica 3 · 0⤊ 0⤋