Question

During cloning, why is nucleus form the body cell ( such as mammary cell) fused with an enucleated egg ? ​

Answer 1

Explanation:

We have released the egg cell's nucleus (A) outside of the egg. This nuclear material will no longer be needed. What remains is an "enucleated" egg (B) that still contains protein, RNA molecules, and other important factors that will ultimately help to establish embryonic stem cells.

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Answer 2

Answer:

The main function of the cell nucleus is to control gene expression and mediate the replication of DNA during the cell cycle. The nucleus is an organelle found in eukaryotic cells. Inside its fully enclosed nuclear membrane, it contains the majority of the cell's genetic material.