GGG and GGC are codons for the amino acid, glycine. A mutation caused the insertion of a cytosine in place of the guanine during DNA replication. Over many generations the DNA changes so that the frequency of GGC is similar to that of GGG. What effect does this mutation have on the population's mean fitness?
A. As the frequency of the GGC codon increases, the population's mean fitness level will remain the same.
B. As the frequency of the GGC codon increases, the population's mean fitness level will initially increase, but once GGC and GGG occur with equal frequency, the mean fitness will decrease.
C. As the frequency of the GGC codon increases, the population's mean fitness level will decrease.
D. As the frequency of the GGC codon increases, the population's mean fitness level will increase.
A. As the frequency of the GGC codon increases, the population's mean fitness level will remain the same.
You might also like to view...
Members of this lineage are highly active, have a closed circulatory system, and have a high oxygen
requirement.
a. Cephalopoda b. Polyplacophora c. Bivalvia d. Gastropoda e. Scaphopoda
Which of the following mutations can help lead to cancer?
A. Mutations to tumor suppressor genes B. Mutations to growth factors C. Mutations to proto-oncogenes D. All of the above would lead to cancer
_____ is known as a cardiac pacemaker
a. Diastole b. Systole c. Cardiac muscle d. SA node e. AV node
Stomach acid does not break down the wall of the stomach because gastric juice contains a powerful base that neutralizes the acid before it can cause damage
Indicate whether the statement is true or false