Cell division Quiz
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5 questions, one answer each
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1. What is the main purpose of mitosis in multicellular organisms?
- A. To produce two genetically identical daughter cells for growth, repair and asexual reproduction
- B. To produce four genetically different haploid cells for sexual reproduction
- C. To reduce the chromosome number by half
- D. To increase genetic variation through crossing over
2. Which of the following correctly describes the stages of the cell cycle in order?
- A. Mitosis, growth, DNA replication
- B. Growth, DNA replication, mitosis
- C. DNA replication, growth, mitosis
- D. Mitosis, DNA replication, growth
3. Meiosis differs from mitosis in that it produces cells with what chromosome number?
- A. The same chromosome number as the parent cell (diploid)
- B. Half the chromosome number of the parent cell (haploid)
- C. Double the chromosome number of the parent cell
- D. A random number of chromosomes
4. Why does meiosis result in genetic variation in the four daughter cells produced?
- A. Because DNA replication is less accurate in meiosis than in mitosis
- B. Because the daughter cells are genetically identical to the parent cell
- C. Through independent assortment and crossing over, which shuffle alleles between homologous chromosomes
- D. Because meiosis involves two rounds of mitosis instead of one
5. A plant cell undergoes mitosis to repair damaged tissue. Explain why mitosis, rather than meiosis, is the appropriate type of cell division for this purpose.
- A. Mitosis produces identical cells needed to maintain the same tissue function, whereas meiosis would produce haploid cells unsuitable for tissue repair
- B. Meiosis takes longer to complete than mitosis
- C. Mitosis can only occur in plant cells, whilst meiosis can only occur in animal cells
- D. Mitosis increases the chromosome number, which is necessary for repair