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This study has made a 'giant leap forward' in solving the gay nature vs nurture debate

Are you born that way?

This study has made a 'giant leap forward' in solving the gay nature vs nurture debate

A study has taken a ‘giant leap forward’ in proving there is a genetic link to homosexuality.

The large study, which looked at gay brothers, has added to the view that genes influence a man’s chances of being gay, but there’s isn’t enough concrete results to prove it yet.

Researchers looked at almost 800 gay male siblings. Dr Alan Sanders of the NorthShore University HealthSystem Research Institute in Evanston, Illinois, says his work ‘is not proof but it’s a pretty good indication’ of genes on the X chromosome influencing sexual orientation.

Study participant Dr. Chad Zawitz, a Chicago physician, called the research ‘a giant step forward’ toward answering scientific questions about homosexuality and helping reduce stigma.

‘[Being gay] is sort of like having certain eye color or skin color — it’s just who you are,’ Zawitz told the AP.

‘Most heterosexuals I know didn’t choose to be heterosexual. It’s puzzling to me why people don’t understand.’

Other studies seeking to find out whether sexuality stems from nature or from other societal factors have either been disproven or had mixed results.

Many scientists believe sexual orientation must stem from the basic makeup of a person’s DNA or their genetic line.

Some have pointed to similar brain patterns in straight women and gay men, as well as with straight men and lesbians.

However other scientists say homosexuality, in terms of evolution, cannot be solely genetic because otherwise the trait would eventually disappear given gay people are less likely to reproduce.

A 2014 Gallup poll recently found 42% of Americans believe that people can be born gay.

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