Question

A mutation occurs in a portion of DNA and does not change the amino acid sequence of a protein

Beneficial
Neutral
Harmful

Answer 1

[AI-generated answer — Bot GPT 3.5]

Beneficial: In some cases, a mutation in DNA can be beneficial if it enhances the survival or reproductive success of an organism. For example, a mutation may confer resistance to a disease-causing pathogen or increase an organism's ability to obtain nutrients from its environment. These advantageous mutations can lead to evolutionary changes and contribute to the adaptation of organisms to their environment.

Neutral: Some mutations in DNA do not have any significant effect on an organism's phenotype or fitness and are considered neutral. These mutations may occur in non-coding regions of DNA or in regions that do not affect the structure or function of a protein. They are typically not subject to natural selection and can persist in a population without being advantageous or harmful.

Harmful: Many mutations in DNA are detrimental to an organism's fitness or health. These harmful mutations can disrupt the normal structure or function of a protein, leading to physiological abnormalities or diseases. Examples of harmful mutations include those that cause genetic disorders like cystic fibrosis or sickle cell anemia. Harmful mutations are usually subject to negative selection and tend to decrease an organism's chances of survival or reproductive success.