1.2.2 Mitosis and the Cell Cycle

• During mitosis, the parent cell produces two genetically identical daughter cells.

  True
• Order the phases of the cell cycle:

  1️⃣ G1 (Gap 1)

  2️⃣ S (Synthesis)

  3️⃣ G2 (Gap 2)

  4️⃣ M (Mitosis)
• The cell cycle is crucial for maintaining cell populations.


  True
• What is the genetic identity of daughter cells produced by mitosis?

  Identical to parent
• Order the phases of mitosis:

  1️⃣ Prophase

  2️⃣ Metaphase

  3️⃣ Anaphase

  4️⃣ Telophase
• What happens to chromosomes during metaphase?

  Align in the middle
• The nuclear membrane reforms during telophase.


  True
• What type of filaments make up the contractile ring in cytokinesis?

  Actin and myosin
• The cleavage furrow deepens until the cell splits completely during cytokinesis.


  True
• What is the final outcome of cytokinesis?

  Two daughter cells
• In cytokinesis, a contractile ring of actin and myosin filaments forms at the cell's equator
• What does each daughter cell inherit after cytokinesis?

  Nucleus, organelles, cytoplasm
• Sister chromatids separate during anaphase of mitosis.


  True
• During mitosis, the cell's DNA is replicated
• During the G1 phase, the cell grows and carries out normal functions.

  True
• The cell prepares for mitosis during the G2 phase.
• What happens to chromosomes during prophase of mitosis?

  Condense
• Arrange the phases of mitosis in the correct order:

  1️⃣ Prophase

  2️⃣ Metaphase

  3️⃣ Anaphase

  4️⃣ Telophase
• The contractile ring constricts to split the cytoplasm during cytokinesis.


  True
• What is the final result of cytokinesis?

  Two daughter cells
• Mitosis is essential for tissue repair
• What happens to chromosomes during prophase of mitosis?

  Chromosomes condense
• In anaphase, sister chromatids move to opposite poles of the cell.


  True
• Cytokinesis ensures that each daughter cell receives a full set of genetic material
• Growth during mitosis involves cell multiplication and DNA replication.

  True
• Match the cell cycle checkpoints with their descriptions:

  G1 Checkpoint ↔️ Checks if the cell has sufficient nutrients and growth factors

  G2 Checkpoint ↔️ Ensures DNA has been fully replicated

  Metaphase Checkpoint ↔️ Verifies chromosome attachment to spindle fibers
• The G1 checkpoint ensures the cell has sufficient nutrients, growth factors, and size
• What is the primary result of mitosis in terms of daughter cells?

  Two genetically identical cells
• Match the cell cycle phases with their key events:

  G1 (Gap 1) ↔️ Cell grows and carries out normal functions

  S (Synthesis) ↔️ Cell replicates its DNA

  G2 (Gap 2) ↔️ Cell prepares for mitosis

  M (Mitosis) ↔️ Cell divides into two daughter cells
• During anaphase, sister chromatids separate and move to opposite poles
• What type of cell division is mitosis?

  Asexual
• The cell cycle consists of four main phases
• What occurs during the S phase of the cell cycle?

  DNA replication
• Match the aspect with the correct type of cell division:

  Number of Daughter Cells ↔️ Mitosis: 2 ||| Meiosis: 4

  Genetic Identity ↔️ Mitosis: Identical ||| Meiosis: Different

  Cell Type ↔️ Mitosis: Somatic ||| Meiosis: Germ

  Purpose ↔️ Mitosis: Growth ||| Meiosis: Reproduction
• During the S phase, DNA is replicated
• During prophase, chromosomes condense and become visible.

  True
• During anaphase, sister chromatids move to opposite poles
• Order the steps of cytokinesis:

  1️⃣ Contractile ring forms at cell equator

  2️⃣ Contractile ring constricts

  3️⃣ Cleavage furrow deepens

  4️⃣ Two daughter cells separate
• Match the phase of mitosis with the corresponding event in cytokinesis:

  Prophase ↔️ Contractile ring forms

  Metaphase ↔️ Contractile ring constricts

  Anaphase ↔️ Cleavage furrow deepens

  Telophase ↔️ Two daughter cells separate
• What is cytokinesis the final stage of in cell division?

  Cytoplasm division