Question

select the correct answer.
which statement about somatic mutations is true?
a. they exist in all the cells of the body.
b. they are acquired through exposure to mutagens.
c. they are inherited via sperm and egg cells.
d. they are passed on to offspring.

Explanation:

• Option A: Somatic mutations don't exist in all body cells; they occur in specific somatic cells, so A is false.
• Option B: Somatic mutations can be acquired by exposure to mutagens (like radiation, chemicals) that damage DNA in somatic cells, so B is true.
• Option C: Inherited mutations come via germ cells (sperm/egg), somatic mutations aren't inherited this way, so C is false.
• Option D: Somatic mutations aren't passed to offspring as they're in non - germ cells, so D is false.

Answer:

B. They are acquired through exposure to mutagens.