A Levels Biology (9700)•9700/11/O/N/22

Explanation
Mitosis produces genetically identical cells in growth, repair, and asexual reproduction
Steps:
- Growth of plant roots involves mitotic cell division to elongate and branch, yielding identical cells.
- Replacement of dead human skin cells occurs through mitosis in basal stem cells, producing clones.
- Repair of damaged muscle tissue uses mitosis in satellite cells to regenerate fibers identically.
- Asexual reproduction of coral, via budding or fragmentation, propagates exact genetic copies through mitosis.
Why D is correct:
- Mitosis divides a cell into two daughter cells with identical DNA, as per the cell cycle definition in biology.
Why the others are wrong:
- A is wrong: All four processes, not just one, use mitosis for identical cells.
- B is wrong: All four processes, not just two, produce genetically identical cells.
- C is wrong: All four processes, not just three, involve mitotic division.
Final answer: D
Topic: Replication and division of nuclei and cells
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