W8L15 - Mitosis and meiosis MCQ

• Which of the following are true about mitosis?

  1. Consists of one round of DNA duplication and one round of cell division.
  2. Consists of one round of DNA duplication and two rounds of cell division.
  3. Consists of two rounds of DNA duplication and one round of cell division.
  4. Division of somatic cells to produce gamete cells.
  5. Division of somatic cells to produce more somatic cells.
  6. Resulting cells are diploid.
  7. Resulting cells are haploid.
  8. Results in human cells with 1n chromosomes.
  9. Results in human cells with 2n chromosomes.

  1, 5, 6, 9
• Which of the following are true about meiosis?

  1. Consists of one round of DNA duplication and one round of cell division.
  2. Consists of one round of DNA duplication and two rounds of cell division.
  3. Consists of two rounds of DNA duplication and one round of cell division.
  4. Division of somatic cells to produce gamete cells.
  5. Division of somatic cells to produce more somatic cells.
  6. Resulting cells are diploid.
  7. Resulting cells are haploid.
  8. Results in human cells with 1n chromosomes.
  9. Results in human cells with 2n chromosomes.

  2, 4, 7, 8
• Which of the following is true about Cytokinesis?

  1. Cytokinesis is the division of the cell at the end of mitosis or meiosis.
  2. Cytokinesis is the division of the chromosomes during mitosis or meiosis.
  3. Cytokinesis is the division of the nuclear membrane at the start of mitosis or meiosis.
  4. Cytokinesis only occurs in meiosis.
  5. Cytokinesis only occurs in mitosis.

  1
• Which of the following are true about cells in interphase?

  1. It is a stage of dividing cells.
  2. It is the stage of non-dividing cells.
  3. No chromosomes are visible.
  4. The chromosomes are visible.
  5. The nuclear envelop intact.
  6. The nuclear envelope is not intact.

  2, 3, 5
• Nondisjunction is the...

  1. failure of daughter chromatids to separate at either meiosis II or mitosis
  2. failure of paired chromosomes to separate (disjoin) in meiosis I
  3. failure of paired chromosomes to separate (disjoin) in meiosis II
  4. failure of sister chromatids to separate at either meiosis II or mitosis
  5. failure of unpaired chromosomes to separate (disjoin) in meiosis I
  6. failure of unpaired chromosomes to separate (disjoin) in meiosis II

  2 and 4
• Match the key characteristics with the recombination phase.

  1. chromosomes thicken and crossover (recombination) occurs
  2. Bivalents contract and become more condensed, transition to metaphase I occurs
  3. Duplicated maternal and paternal chromosomes pair
  4. Homologs slightly separate
  5. Chromosomes have been duplicated, unpaired and start to condense

  • Diakinesis
  • Leptotene
  • Pachytene
  • Diplotene
  • Zygotene

  1 - pachytene

  2 - diakinesis

  3 - zygotene

  4 - diplotene

  5 - leptotene
• Match the phase of mitosis with a key event that occurs in that phase.

  1. Centromeres split and chromatids are pulled apart
  2. Chromosomes condense, and the bipolar spindle develops
  3. Chromosomes fully condenses and are arranged in a line in the cell
  4. Chromosomes reach poles and start to decondense
  5. Nuclear envelope dissolves and the chromosomes begin to migrate

  • anaphase
  • prophase
  • metaphase
  • telophase
  • prometaphase

  1 - anaphase

  2 - prophase

  3 - metaphase

  4 - telophase

  5 - prometaphase
• Match the definition with the term:

  1. Complete set of chromosomes (n, 2n, 3n etc.)
  2. Extra copy or missing copy of one chromosome
  3. Containing more than two homologous sets of chromosomes

  • euploidy
  • polypoidy
  • aneuploidy

  1 - euploidy

  2 - aneuploidy

  3 - polyploidy
• Number the phases of recombination in meiosis in the correct order.

  • pachytene
  • zygotene
  • leptotene
  • diplotene
  • diakinesis


  Leptotene, Zygotene, Pachytene, Diplotene, Diakinesis
• Number the phases of mitosis in the correct order.

  • telophase
  • metaphase
  • prophase
  • prometaphase
  • anaphase

  Prophase, Prometaphase, Metaphase, Anaphase, Telophase