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rayne_day

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JohnnyGus

Polar body twins

Who else here has heard of polar-body twins, which share about 75% of their DNA and are formed when an unfertilized ovum splits into two equal parts and subsequently...
14:50 Sun 02nd Oct 20055 answers, last by rayne_day 04:00 Tue 25th Jul 2006

Only 1 question