Question

Explain results and reason of The scientist McKinnel (1962) in his experiments transplanted the

blastula nuclei into enucleated eggs

Answer 1

normal differentiation of enucleated eggs

Answer 2

The experiment shows that the living nuclei could be transplanted onto enucleated cells and can produce nucleated embryos and undergo normal differentiation.  

The living nuclei were taken from the blastula or early gastrula stage and then transplanted into cells without nucleus.

This experiment set an example that was valuable to study nuclear differentiation and also that nuclei cleavage can undergo mitosis.