Assume that a mutation occurs within a gene within an individual fruit fly. What will be the most likely series of consequences of this mutation?
A) It will initially change the RNA sequence; then this change in genetic information will be transferred to the DNA sequence and finally result in a change in the protein made by the gene.
B) It will initially change the DNA sequence; then this change in genetic information will be transferred to the RNA sequence and finally result in a change in the protein made by the gene.
C) It will initially change the RNA sequence; then this change in genetic information will be transferred to the protein made by the gene and finally result in a change in the DNA.
D) It will initially change the DNA sequence; then this change in genetic information will be transferred to the protein made by the gene and finally result in a change in the RNA.
E) It will initially change the protein sequence made by the gene; then this change in genetic information will be transferred to DNA and finally result in a change in the RNA.

Question

Quizplus · Accepted Answer

The correct answer is B because DNA is transcribed into RNA, which is then translated into protein. A mutation in the DNA sequence will therefore first change the RNA sequence, and then the protein sequence.

Assume That a Mutation Occurs Within a Gene Within an Individual