Why Was the Nucleus Removed from the Egg Cell Used

question 2

Multiple Choice

Why was the nucleus removed from the egg cell used to create Dolly, the cloned sheep?

• A) to remove the mitochondrial DNA of the egg donor
• B) to test whether the genetic contribution from a sperm cell alone could produce a lamb
• C) to create a cloned sheep in the absence of DNA
• D) since the genome for the clone was supplied by the diploid mammary cell, the presence of the egg cell DNA would result in triploidy
• E) to see whether egg cell DNA injected into a sperm cell could produce a lamb

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