When cloning a sheep, why is it necessary to remove the nucleus from the egg cell and fuse the mammary gland cell, including its nucleus, to the egg cell?
a. because only cells with the nucleus of a mammary gland cell will divide; the cells with the nucleus of an egg cell will not divide
b. because mammary gland cells are only found in females
c. because the egg cell has only a haploid complement of genes, whereas the mammary gland cell has a diploid complement
d. because the egg cell has a diploid complement of genes, whereas the mammary gland cell has a haploid complement
e. because without the mammary gland cell, the newborn clone will have no mammary glands from which to receive nutrition
c. because the egg cell has only a haploid complement of genes, whereas the mammary gland cell has a diploid complement
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