Tag: fraternal twins

The Genetics of Twinning

An international team of scientists has identified two genetic variants that influence the odds of a mother having natural fraternal, non-identical, twins. The findings also offer more insight into female fertility and ovarian function as one of the variants is near a gene called FSHB that plays a role ...

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Seeing Double

Twins have long fascinated us as humans, so much so that twin stories are ingrained in the mythology of almost every culture. Beyond folklore, the study of twins has also become bedrock for much of what we know about the genetics of many traits, diseases and other conditions. For scientists, twins offer a ...

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More Alike Than Different

The twins Greg and Alex Abbas were always really good in math and science. They sounded exactly alike on the phone. They could each play the piano, and they both became Eagle Scouts. “We’ve always been more alike than different,” said Greg, a software engineering manager at Apple Inc. In high school ...

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The true value of two-for-one deals

In a recent paper, Southern California researchers announced that political involvement has a genetic component. Though they stopped short of identifying a gene or genes at work, the researchers concluded that the decision to go out and vote was genetically determined by up to 50 percent. Genes, they also ...

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