Assertion :Dolly was a female domestic sheep, and the first mammal cloned by somatic cell nuclear transfer Reason: Cell nucleus from an adult somatic cell is transferred into an unfertilized oocyte

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Dolly was a female domestic sheep, and the first mammal coined by somatic cell nuclear transfer. Finn Dorset was the nuclear donor and the Scottish black face ewe was the cytoplasmic donor (who's oocyte was taken):in the cloning of Dolly sheep. Another Scottish black face ewe was a surrogate to the zygote.
Cell nucleus from an adult somatic cell was transferred into an fertilized oocyte.
So, the correct option is 'Both assertion and reason are correct and reason is the correct explanation for assertion'.

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