+20 Questions on Mitosis
20 multiple-choice questions (with five answer options each) on the topic of Mitosis, followed by the answer key at the end.
Multiple-Choice Questions: Mitosis
1. What is the main purpose of mitosis?
A) To produce gametes
B) To increase genetic diversity
C) To divide the cytoplasm
D) To produce two genetically identical daughter cells
E) To create energy
2. Mitosis is a part of which larger process in the cell cycle?
A) G1 phase
B) Cytokinesis
C) Meiosis
D) Interphase
E) M phase
3. In which type of cells does mitosis occur?
A) Only gametes
B) Only neurons
C) Somatic cells
D) Prokaryotic cells
E) Red blood cells
4. How many daughter cells are produced in mitosis?
A) 1
B) 2
C) 3
D) 4
E) 6
5. Which phase of mitosis is characterized by the alignment of chromosomes at the cell’s equator?
A) Prophase
B) Metaphase
C) Anaphase
D) Telophase
E) Interphase
6. What happens during prophase?
A) Chromosomes are duplicated
B) Sister chromatids separate
C) Chromosomes condense and spindle fibers begin to form
D) Cell plate forms
E) Nucleus reappears
7. During which phase do sister chromatids separate and move to opposite poles?
A) Prophase
B) Interphase
C) Metaphase
D) Anaphase
E) Telophase
8. What forms at the end of telophase?
A) Spindle apparatus
B) Cell plate only
C) Two nuclear envelopes
D) Centrosomes
E) Lysosomes
9. Which of the following is NOT a phase of mitosis?
A) Prophase
B) Metaphase
C) Interphase
D) Anaphase
E) Telophase
10. What structure helps pull the chromosomes apart during mitosis?
A) Ribosome
B) Mitochondrion
C) Spindle fibers
D) Golgi body
E) Centrioles
11. What happens to the nuclear envelope during mitosis?
A) It remains intact
B) It dissolves during prophase and reforms in telophase
C) It merges with the plasma membrane
D) It changes into spindle fibers
E) It becomes thicker
12. What is the role of centrioles in mitosis?
A) DNA replication
B) Chromosome synthesis
C) Spindle fiber formation
D) Cytokinesis
E) Ribosome production
13. How many chromosomes are in each daughter cell after mitosis in a human?
A) 23
B) 46
C) 92
D) 44
E) 21
14. What is cytokinesis?
A) Division of the nucleus
B) Division of chromosomes
C) Division of the cytoplasm
D) Fusion of cells
E) Synthesis of DNA
15. What would happen if the spindle fibers were disrupted during mitosis?
A) DNA would not replicate
B) The cell would become larger
C) Chromosomes would not separate properly
D) The cell would become a gamete
E) The nuclear membrane would stay intact
16. Which phase directly follows metaphase?
A) Interphase
B) Telophase
C) Prophase
D) Cytokinesis
E) Anaphase
17. What term describes the identical halves of a duplicated chromosome?
A) Homologous chromosomes
B) Alleles
C) Sister chromatids
D) Genes
E) Codons
18. Why is mitosis important for multicellular organisms?
A) For energy production
B) For sexual reproduction
C) For growth and repair
D) For creating diversity
E) For photosynthesis
19. What occurs at the end of mitosis but before the next interphase?
A) Telophase
B) Prophase
C) Synthesis
D) Cytokinesis
E) G1 phase
20. Which of the following best describes the daughter cells resulting from mitosis?
A) Haploid and genetically different
B) Diploid and genetically identical
C) Diploid and genetically different
D) Haploid and genetically identical
E) Anucleate and similar
Answer Key
1. D
2. E
3. C
4. B
5. B
6. C
7. D
8. C
9. C
10. C
11. B
12. C
13. B
14. C
15. C
16. E
17. C
18. C
19. D
20. B
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