Scientists have discovered two stretches of DNA linked to homosexuality in men. The new study claims that being gay is in a person's genes and is not a matter of choice, the Daily Mail reports. The controversial study was done by Chicago University researchers who analyzed the DNA of over 400 gay brothers.

The men were all recruited at Gay Pride festivals over several years. It's not clear which genes the DNA contains or how it affects a person's sexual preference. This new research, which was presented during a conference at the American Association for the Advancement of Science, supports a 1993 study which is said to have been the first to discover the "gay gene."

While some scientists may consider this research to be groundbreaking, it could pave way for discrimination against homosexuals. According to the Daily Mail, the results of the study could lead to genetic tests used by insurance companies to determine if their client is gay. The tests could also be used by pregnant women who wish to abort "gay babies" or babies who have the two DNA stretches.

 Dr. Michael Bailey from Northwestern University in Illinois contributed to this recent study and said the research was "the biggest of its kind."

"Sexual orientation has nothing to do with choice," he said. "Our findings suggest there may be genes at play - we found evidence for two sets that affect whether a man is gay or straight."

Bailey did say that he believes the results could lead to prenatal tests to determine if a man is gay or straight but warns that "it would not be very accurate" because there are other things that would need to be factored in that could ultimately "influence the outcome."

However, he said he is not opposed to a prenatal test being developed because he thinks pregnant women should have the option of knowing.

"Clearly parents should not be allowed to torture or kill babies. But they can currently choose to terminate a pregnancy early on, so they should be allowed to have as much information on the future child as possible," he said.