Which statement about single-nucleotide polymorphisms (SNPs) is true?
A)SNPs can change an exon sequence into an intron sequence.
B)SNPs can change an intron sequence into an exon sequence.
C)SNPs are generally responsible for frameshift mutations.
D)SNPs are generally responsible for point mutations.

Question

Quizplus · Accepted Answer

Point mutations are substitutions of one base for another and can occur in DNA or RNA. This type of change does not result in an extra base or a lost base, just a substitution. This type of base change is known as a single-nucleotide polymorphism (SNP). Frameshift mutations are deletions or insertions of DNA bases, not one-for-one substitutions. SNPs do not interconvert introns and exons.

Which Statement About Single-Nucleotide Polymorphisms (SNPs) Is True