Most mutations
A)proceed though a set of programmed sequences.
B)enable individuals to evolve by becoming genetically different.
C)occur from exposure to external agents such as radioactivity.
D)cannot be passed along through reproduction cells.
E)result from random changes that occur in coded genetic instructions.

Question

Quizplus · Accepted Answer

Most mutations result from random changes that occur in coded genetic instructions, such as errors during DNA replication or exposure to environmental mutagens. While external agents such as radiation can increase the rate of mutations, they are not required for mutations to occur. Mutations that result in genetic differences can be passed on through reproduction, and therefore enable individuals to evolve over time. Mutations do not proceed through a set of programmed sequences.

Most Mutations