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By Tina Hesman Saey. January 7, at pm. On average, identical twins differ by 5. The finding is important because identical twins — also called monozygotic twins because they come from a single fertilized egg — are often studied to determine whether particular traits, diseases or conditions result from genetics or from environmental influences. Identical twins were thought to be genetically the same, so differences in their health were considered to be the product of their environment. The new finding suggests that some genetic changes could also account for differences between twins.
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Massive Study Finds No Single Genetic Cause of Same-Sex Sexual Behavior

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Could same-sex couples soon conceive a child with both their DNA?

Patrick's Day Sale! Now Thru March 17th. If you know the name of the DNA Group you can go directly to them by clicking on the links below. The corresponding kit number, name, email address and lineage items are posted below for each member.
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The 'Gay Gene' Is A Myth But Being Gay Is 'Natural,' Say Scientists

Two gay men who met online and started a physical relationship discovered they were actually brothers live on the Jeremy Kyle show. A DNA test revealed the shock truth for lovers Paul and Lee, who had been a couple for years after finding each other online. The pair - who exchanged flirty messages for a full two years before hooking-up - were none the wiser to the fact they shared the same mother
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A recent scientific development could lead to new infertility treatments and bring same-sex couples one step closer to conceiving a child with both their DNA. Azim Surani , a prominent scientist at the University of Cambridge, said he and his colleagues made a major discovery in mimicking the way the body creates sperm from stem cells. During a conference in London last month, he discussed the results of his not-yet-published study. The process is necessary to prevent DNA mutations from being passed to offspring. Albertini noted scientists in China and Japan created artificial sperm and eggs from stem and skin cells that produced healthy mice pups.
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