Question

if you were to compare the dna (genetic material) in a cell from the leg of a fruit fly with the dna from one of its sperm cells, which of the following statements would be true? select one: a. both the genes and the alleles would be totally different in the two cells. b. there would be some genes and alleles in common, but not all. in addition to some common genes and alleles, the leg cell would have leg cell genes and the sperm cell would have sperm cell genes. c. the genes in both cells would be the same. all of the alleles in the sperm would be present in the leg cell; but not all of the alleles in the leg cell would be present in the sperm cell. d. the genes in the two cells would be the same, but the alleles would be totally different.

Explanation:

All body cells (like leg cells) of an organism have the same genes (full genome). Sperm cells are gametes formed by meiosis, so they have half the genetic material—same genes as body cells but only one allele per gene (body cells have two alleles per gene). Thus, genes are identical, but sperm has only some alleles from the leg cell.

Answer:

c. The genes in both cells would be the same. All of the alleles in the sperm would be present in the leg cell; but not all of the alleles in the leg cell would be present in the sperm cell.