Which process yields genetically identical daughter cells?

• A. DNA replication.
• B. Mitosis.
• C. Cytokinesis.
• D. Meiosis.

Answer: (B)

The key idea is that having identical genetic material in the resulting cells requires the chromosomes to be equally distributed into two separate nuclei. DNA replication copies the genome, producing sister chromatids, but it is mitosis that actually separates those chromatids into two new nuclei. This division ensures each daughter nucleus contains an identical set of chromosomes. Cytokinesis then splits the cytoplasm to form two distinct cells, each with the same genetic information. Meiosis introduces genetic variation and changes chromosome number, so it does not produce genetically identical daughter cells. So, the process that yields genetically identical daughter cells is mitosis.