mitosis

• What do both plant and animal cells contain?

  A nucleus
• What are chromosomes made of?

  The molecule DNA
• How many chromosomes does the cell in the video contain?

  Four chromosomes
• How many pairs of chromosomes do human body cells contain?

  23 pairs of chromosomes
• What type of cells have unpaired chromosomes?

  Gametes
• What do chromosomes carry that determine features?

  A large number of genes
• What is the purpose of the cell cycle?

  To allow cells to divide
• What are the two ways cells can divide?

  Mitosis and meiosis
• What is the first stage of the cell cycle?

  DNA replicates to form copies
• What happens to the chromosomes during the first stage of the cell cycle?

  They remain attached after replication
• What internal structures does the cell copy during the first stage?

  Mitochondria and ribosomes
• What occurs in the second stage of the cell cycle?

  Mitosis takes place
• What happens to the chromosomes during mitosis?

  One set is pulled to each end
• What divides during the final stage of the cell cycle?

  The cytoplasm and cell membrane
• What is the result of the cell cycle?

  Two identical cells are formed
• What is the significance of mitosis for multicellular organisms?

  It is essential for growth and development
• When does mitosis occur in an organism?

  When an organism repairs itself
• What type of reproduction involves mitosis?

  Asexual reproduction
• What are the stages of the cell cycle involving mitosis?

  1. DNA replication
  2. Mitosis
  3. Cytoplasm and membrane division
• What are the functions of mitosis?

  • Essential for growth and development
  • Repairs damaged tissues
  • Occurs during asexual reproduction