Cloning_stemcells

Cloning_stemcells - Hello Dolly Mammalian cloning Why has...

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Hello, Dolly!
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Mammalian cloning
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Why has cloning mammals become possible now? In vitro fertilization technology has come of age. Louise Brown the first “test tube baby” was born in the 1970s. Nuclear transfer into human eggs is possible for males with defective sperm. Cloning is an effective way of producing genetically engineered, designer animals.
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Somatic nuclear transfer Totipotency (the ability to differentiate into all different cell types) was regained when somatic cells were arrested in the cell cycle before DNA synthesis.
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Why Clone? Reproductive cloning is used to propagate genetically superior or genetically engineered trees, plants, and livestock.
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How easy is animal reproductive cloning? Dolly was the only lamb from 277 fused eggs Mice, cows, pigs, sheep, cat, monkey, mule successfully cloned. Tetra – rhesus monkey Copycat Idaho Gem
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Dolly gave birth to a healthy lamb named Bonnie. Dolly was put down because she was suffering
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Cloning_stemcells - Hello Dolly Mammalian cloning Why has...

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