Question

Why do single nucleotide polymorphisms occur at only certain nucleotides in our genome?

a) Genetic mutations
b) Environmental factors
c) Random chance
d) Regulatory mechanisms

Answer 1

Single nucleotide polymorphisms occur at only certain nucleotides in our genome due to genetic mutations.

Step-by-step explanation:

Single nucleotide polymorphisms (SNPs) occur at only certain nucleotides in our genome due to genetic mutations. These mutations are changes to the nucleotides in a segment of DNA that codes for a protein. Mutations can cause a single change in amino acid, stop replication or reading of the DNA strand, or cause frame shifts, resulting in non-functional proteins.