The smallest type of genetic change that can occur within a given gene is a _______.An example of this phenomenon occurs with __________.
A)gene deletion;chromosomal fragmentation.
B)single-nucleotide polymorphism;the b-globin gene.
C)gene duplication;mitosis.
D)codon substitution;phenylketonuria.

Question

Quizplus · Accepted Answer

Single-nucleotide polymorphism (SNP) is the smallest type of genetic change that can occur within a given gene. An example of this phenomenon occurs with the b-globin gene, where a single nucleotide change can result in sickle cell anemia.

The Smallest Type of Genetic Change That Can Occur Within