Question

which type of mutation occurs only in reproductive cells?
somatic mutation
germline mutation
point mutation
(one more option, text unclear)

Explanation:

To determine the mutation type occurring only in reproductive cells, we analyze each option:

• Somatic mutations occur in non - reproductive (somatic) cells.
• Germline mutations occur in germ cells (reproductive cells like eggs and sperm) and can be passed to offspring.
• Point mutations are a type of mutation at a single nucleotide site and can occur in any cell type, not restricted to reproductive cells.
• The last option (likely "frameshift mutation") is a type of mutation affecting the reading frame and can occur in various cell types, not just reproductive.

So, germline mutation is the one that occurs only in reproductive cells.

Answer:

B. germline mutation