DNA replication or repair occurs in a cell in all of the following situations except when proteins are synthesized. DNA replication primarily happens during the S phase of the cell cycle, such as when cells undergo mitosis or meiosis. Repair processes happen as needed to maintain genomic stability. However, protein synthesis is a different cellular process that does not involve DNA replication or repair directly. To summarize:
- DNA replication occurs when cells undergo mitosis and meiosis.
- DNA repair happens to fix damage to the DNA.
- Protein synthesis, which involves making proteins from mRNA, does not require DNA replication or repair.
Thus, DNA replication or repair does not occur simply when proteins are synthesized in a cell.
