Multiple Choice
Synonymous substitutions are possible because
A) most changes in DNA are either deleterious or selectively neutral.
B) mutation rates are high.
C) mutation rates are low.
D) most amino acids are specified by more than one codon.
E) most codons are specified by more than one amino acid.
Correct Answer:

Verified
Correct Answer:
Verified
Q25: The percentage of the genome that encodes
Q26: A biologist is examining species of plants
Q27: Which observation would provide the strongest evidence
Q28: If the frequency of an allele is
Q29: You discover a population of mustard plants
Q31: Due to various causes,including DDT poisoning,the population
Q32: Which mode of selection operates when individuals
Q33: A nonsynonymous mutation is also called a
Q35: In most mammals,the main role of lysozymes
Q37: What was Darwin's explanation for the evolution