The random alteration in a sequence of DNA nucleotides that provides a new variant of a gene is
A) a gene mutation.
B) a polymorphism.
C) genetic drift.
D) disruptive selection.
E) stabilizing selection.

Question

Quizplus · Accepted Answer

A random alteration in a sequence of DNA nucleotides that provides a new variant of a gene is known as a gene mutation. This may result in a change in the phenotype of an organism and can be the basis for evolution. Polymorphism refers to the coexistence of different forms of a particular trait within a population, whereas genetic drift is a random fluctuation in allele frequency in a population. Disruptive and stabilizing selection refer to the different types of natural selection that can act on a population.

The Random Alteration in a Sequence of DNA Nucleotides That