In Many Organisms, Mutations That Replace One Pyrimidine with Another

question 44

Multiple Choice

In many organisms, mutations that replace one pyrimidine with another, or one purine with another, are more frequent than mutations that replace a pyrimidine with a purine or vice versa. What does this finding imply about the accuracy of the statement "mutations are random."

• A)The statement applies to all types of mutations, regardless of their chemistry.
• B)The statement applies only to single-nucleotide point mutations.
• C)The statement applies only to single-nucleotide frameshift mutations.
• D)The statement applies only to nucleotide changes that result in nonsense codons.
• E)"Random" means without regard for the needs of the organism.

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