EVERYDAY SCIENCE

SCIENCE

ZOOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Mutations within a population always ____
A
Increase survival rates
B
Form adaptations
C
Increase the genetic variation
D
Are expressed
Explanation: 

Detailed explanation-1: -Gene duplication, mutation, or other processes can produce new genes and alleles and increase genetic variation. New genetic variation can be created within generations in a population, so a population with rapid reproduction rates will probably have high genetic variation.

Detailed explanation-2: -Mutation Generates New Alleles Mutation creates slightly different versions of the same genes, called alleles. These small differences in DNA sequence make every individual unique. They account for the variation we see in human hair color, skin color, height, shape, behavior, and susceptibility to disease.

Detailed explanation-3: -Mutations are one of the fundamental forces of evolution because they fuel the variability in populations and thus enable evolutionary change.

Detailed explanation-4: -Although mutation provides the ultimate source of genetic variation, it typically leads to decreased fitness. Even when a population is in the process of adaptation, the majority of its mutations are still deleterious and will ultimately be eliminated by selection.

Detailed explanation-5: -Answer and Explanation: The correct answer to this question is B. They always cause a change to an organism’s genotype. Regardless of the cause of the change, a DNA sequence is always altered when it mutates.

There is 1 question to complete.