Thứ Tư, 6 tháng 7, 2016

NPR News: 20 Years Ago, A Cloned Sheep Named Dolly Was Born

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20 Years Ago, A Cloned Sheep Named Dolly Was Born
Twenty years ago today, the world's first cloned mammal was born — a sheep named Dolly.

Đọc thêm tại NPR
at July 6, 2016 at 03:29AM
Health & Science
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