An error in the process of gene replication that results in a change in the molecular structure of the DNA is called:

A) a mutation.
B) mitosis.
C) meiosis.
D) canalization.

Gene Replication

The biological process by which a cell copies its DNA, ensuring each daughter cell receives an identical set of genetic material.

Molecular Structure

Describes the arrangement and bonds between atoms within a molecule, determining its chemical properties and behavior.

Mutation

An alteration in the molecular structure of an individual’s DNA.