GROWTH DEVELOPMENT CHILD
HEREDITY AND ENVIRONMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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scientists had to wake up the sleeping genes in the animal
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the veterinarians had to put the genes to sleep and operate on them
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scientists traced a copy of them
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all of these answers
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Detailed explanation-1: -Dolly was cloned from a mammary gland cell taken from an adult Finn Dorset ewe. Wilmut and his team of researchers at Roslin created her by using electrical pulses to fuse the mammary cell with an unfertilized egg cell, the nucleus of which had been removed.
Detailed explanation-2: -She was created using the technique of somatic cell nuclear transfer, where the cell nucleus from an adult cell is transferred into an unfertilized oocyte (developing egg cell) that has had its cell nucleus removed.
Detailed explanation-3: -Stanford and UCSF researchers fused a segment of DNA containing a gene from the African clawed frog Xenopus with DNA from the bacterium E. coli and placed the resulting DNA back into an E. coli cell.
Detailed explanation-4: -The world’s first cloned mammal has gone on to greener pastures. Dolly the sheep, the first mammal cloned from an adult cell, died on 14 February. Her caretakers at the Roslin Institute in Scotland euthanized the 6-year-old sheep after diagnosing an incurable lung tumor.