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Biotech

Submission + - Rare Semi-Identical Twins Discovered

daftna writes: Twins can be identical, fraternal and apparently semi-identical, scientists now report.

Researchers discovered twins who are identical on their mom's side of the equation but share only half their genes from dad.

Here's how it happened: Two sperm cells fertilized one egg — an event assumed to be very rare — then split into two embryos.

Numeric stability is probably not all that important when you're guessing.

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