A change in a single nucleotide that results in no change in the amino acid sequence of the polypeptide produced is known as a
A) nonsense mutation.
B) silent mutation.
C) missense mutation.
D) frameshift mutation.
E) none of the above
B) silent mutation.
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Which of the following is TRUE of clitoridectomy?
A. It is the restoration of a mutilated clitoris. B. It is the partial or total removal of the clitoris. C. It is the stitching together of the clitoris and prepuce. D. It is the restoration of a mutilated prepuce.
How many nucleotides form the code for one amino acid?
A. 2 D. 5 B. 3 E. 6 C. 4
All of the following are functions of the citric acid cycle except
A) production of ATP. B) production of NADH. C) production of FADH2. D) release of carbon dioxide. E) adding electrons and protons to oxygen, forming water.
Smooth muscle is responsible for
A) voluntary body activities. B) the pumping action of the heart. C) an athlete's ability to run a 100-meter dash. D) involuntary body activities.