Question

Select the correct answer. Which of the following is an example of a beneficial mutation? A. a mutation causing uncontrolled cell division in human tissue cells B. a mutation inhibiting human immunodeficiency virus from entering the host cell C. a mutation resulting in partial or complete loss of chlorophyll pigments in plants D. a mutation resulting in a squirrel being born without ovaries

Answer 1

B. A mutation inhibiting human immunodeficiancy virus from entering the host cell.
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Answer 2

Answer:

B. a mutation inhibiting human immunodeficiency virus from entering the host cell.

Explanation:

A mutation is a change in the genetic material of a particular organism, which can trigger a change in the organism. Mutations can be due to errors in (spontaneous) DNA replication as well as exposure to (induced) mutagen. They can also happen in somatic or germ cells. Generally, mutations go unnoticed or cause serious consequences, such as anomalies, but there are rare cases in which a mutation can benefit the body. An example of a beneficial mutation is a mutation that inhibits the human immunodeficiency virus from entering the host cell.