The molecular basis of a mutation is most closely linked to a
A)defect in the transcription of a genetic message to mRNA.
B)change in the sequence of bases on a DNA molecule.
C)defect in the rRNA of ribosomes.
D)misplaced stop codon.

Question

Quizplus · Accepted Answer

A mutation at its most fundamental level involves a change in the sequence of bases on a DNA molecule. This alteration can lead to various downstream effects, including defects in transcription, translation, and the function of the resulting protein, but the initial event is the change in the DNA sequence itself.

The Molecular Basis of a Mutation Is Most Closely Linked