Cell Division

• What is cell division?

  The process of a cell splitting into two
• Why is cell division important for growth and development?

  It allows organisms to grow and repair tissues
• What is the difference between mitosis and meiosis?

  Mitosis produces identical cells; meiosis produces varied cells
• How many daughter cells are produced in mitosis?

  Two daughter cells
• How do daughter cells compare to the parent cell in mitosis?

  They are genetically identical to the parent cell
• What happens during the stages of mitosis?

  Chromosomes are duplicated and divided into daughter cells
• What is the role of meiosis in sexual reproduction?

  It produces gametes with half the chromosome number
• What is the difference between haploid and diploid cells?

  Haploid cells have one set; diploid have two sets
• Why is it important that the chromosome number is halved during meiosis?

  To ensure offspring have the correct chromosome number
• Describe the stages of meiosis.

  Meiosis includes two rounds: meiosis I and meiosis II
• What is crossing over, and why is it important during meiosis?

  It's the exchange of DNA between chromatids, increasing variation
• How does the cell cycle control cell division?

  It regulates the timing and sequence of cell division
• What is the result of mitosis?

  Two genetically identical daughter cells
• What is the purpose of meiosis in organisms that reproduce sexually?

  To ensure the chromosome number is halved
• What is the correct order of stages in mitosis?

  Interphase → Prophase → Metaphase → Anaphase → Telophase
• What occurs during prophase of mitosis?

  The nuclear envelope breaks down
• What is the role of spindle fibers during mitosis?

  They help chromosomes separate and move to poles
• How many chromosomes are in a human gamete?

  23 chromosomes
• What occurs during anaphase of mitosis?

  Chromatids are pulled apart toward opposite poles
• What is the result of meiosis in terms of chromosome number?

  The chromosome number is halved, producing haploid cells
• What happens during crossing over in meiosis?

  Chromatids exchange sections of DNA
• Why is genetic variation important in sexual reproduction?

  It increases the chances of survival in changing environments
• What are the stages of mitosis?

  1. Prophase
  2. Metaphase
  3. Anaphase
  4. Telophase
• What are the stages of meiosis?

  1. Meiosis I

  • Prophase I
  • Metaphase I
  • Anaphase I
  • Telophase I

  1. Meiosis II

  • Prophase II
  • Metaphase II
  • Anaphase II
  • Telophase II
• What are the differences between mitosis and meiosis?

  • Mitosis:
  • Produces 2 identical cells
  • Occurs in somatic cells
  • Meiosis:
  • Produces 4 varied cells
  • Occurs in gametes