Refer to the figure above and then answer the question that follows.
-Which of the following choices is an example of a point mutation?
A) failure of a chromosome to complete replication
B) pairing of a G on one strand of DNA with a C on the other
C) loss or gain of a chromosome
D) pairing of a G on one strand of DNA with a T on the other
E) failure of a chromosome to be replicated

Question

Refer to the figure above and then answer the question that follows.
-Which of the following choices is an example of a point mutation?
A) failure of a chromosome to complete replication 
B) pairing of a G on one strand of DNA with a C on the other 
C) loss or gain of a chromosome 
D) pairing of a G on one strand of DNA with a T on the other 
E) failure of a chromosome to be replicated

Quizplus · Accepted Answer

Point mutations involve a change in a single nucleotide pair in DNA. Pairing of a G with a T instead of the usual C is an example of such a mutation, where one base is substituted for another.

Refer to the Figure Above and Then Answer the Question