Which of the following is a point mutation?

Answers:

A) A mutation involving a single nucleotide
B) A mutation involving one chromosome breaking off and attaching to a different chromosome
C) A mutation involving a segment of a chromosome
D) A mutation involving the addition of one or more nucleotides into a segment of DNA

Choose ONE answer only.

A) A mutation involving a single nucleotide

DNA replication results in two DNA molecules, ....

Answers:

A) one with two new strands and the other with two original strands.
B) each with two new strands.
C) each with one new strand and one original strand.
D) each with two original strands.

C) each with one new strand and one original strand.