Question Detail
Question
A mutation is: a. a physical deformity b. a defective egg or sperm cell c. the inability to speak d. a change in DNA sequence
Correct Answer
Option D is the correct answer.
Detailed Explanation
In biology, a mutation is defined as any change in the nucleotide sequence of an organism's DNA. This change can be small (point mutation) or large (chromosomal rearrangement). It is the ultimate source of genetic variation.
Hint
It's a change in the genetic code itself.