Question

When gene expression occurs:
• The gene is activated and used in protein synthesis.
• The gene is removed from the genotype in that cell.
• A gene is mutated with either an insertion or deletion.
• The gene is passed on to the daughter cells during mitosis.

Answer 1

"The gene is activated and used in protein synthesis."

Explanation: gene expression means the gene is transcribed (and often translated) to produce RNA and protein. It does not remove the gene from the genotype or necessarily mutate it. While DNA (including the gene) is replicated and passed to daughter cells during mitosis, that is a separate process and not what “gene expression” means.