सिर्जना-सुनगाभा

By Deborah Netburn, LA Times

Everyone’s DNA sequence is unique. But for those who wish to maintain their genetic privacy, it may not be unique enough.

A new study argues that more than half of Americans could be identified by name if all you had to start with was a sample of their DNA and a few basic facts, such as where they live and how about how old they might be.

It wouldn’t be simple, and it wouldn’t be cheap. But the fact that it has become doable will force all of us to rethink the meaning of privacy in the DNA age, experts said.

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By Ed Cara

A pair of Australian siblings are some of the rarest humans ever documented, according to their doctors. They say the brother and sister are semi-identical twins, sharing the exact same DNA from their mother’s side, but only a portion of their father’s genetic makeup. The children are thought to be only the second case of semi-identical twins discovered, and the first to be identified during pregnancy.

The story of the twins was detailed in a case report published Wednesday in The New England Journal of Medicine. According to the authors, the siblings are a class of twins called sesquizygotic, something of a midpoint between fraternal and identical twins.

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