Let's suppose a sheep that provided the oocyte for reproductive cloning was homozygous for a gene that causes a small head. This gene follows a maternal effect pattern of inheritance. The oocyte had its nucleus removed and then was fused with a mammary cell that was homozygous for the nonmutant allele, which results in a normal-sized head. Would you expect the resultant lamb to have a small or normal-sized head? Explain your choice.

Question

Biology

Mikaela Simmons

31 August, 23:53

Let's suppose a sheep that provided the oocyte for reproductive cloning was homozygous for a gene that causes a small head. This gene follows a maternal effect pattern of inheritance. The oocyte had its nucleus removed and then was fused with a mammary cell that was homozygous for the nonmutant allele, which results in a normal-sized head. Would you expect the resultant lamb to have a small or normal-sized head? Explain your choice.

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Answers (1)

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Gretchen Anthony · Answer 1

Small head

Explanation:

Since the genes are located in the nucleus of a cell which has being removed (but some genes are still located in the mitochondria of the ocyte) from its ocyte to fuse it with with another nucleus. Since the cell follows a maternal inheritance of gene, it would have a small head because of the presence genes in the mitochondria.