Cell Cycle and Division
Biology ⇒ Cell Biology
Cell Cycle and Division starts at 8 and continues till grade 12.
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Describe the difference between cytokinesis in plant and animal cells.
Describe the main events that occur during prophase of mitosis.
Describe what happens during anaphase of mitosis.
During which phase of mitosis do the nuclear envelope and nucleolus reappear?
During which phase of the cell cycle does the cell grow and carry out normal functions?
A cell has 12 chromosomes before mitosis. How many chromosomes will each daughter cell have after mitosis?
A cell with 8 chromosomes undergoes meiosis. How many chromosomes will each gamete have?
A scientist observes a cell with chromosomes lined up in the center and spindle fibers attached to each centromere. Which phase is the cell in?
Which checkpoint in the cell cycle ensures that DNA is undamaged before the cell enters mitosis?
(1) G1 checkpoint
(2) G2 checkpoint
(3) M checkpoint
(4) S checkpoint
Which of the following best describes the function of checkpoints in the cell cycle?
(1) To speed up cell division
(2) To ensure the cell is ready to proceed to the next phase
(3) To destroy damaged cells
(4) To replicate DNA
Which of the following best describes the outcome of meiosis?
(1) Two diploid cells
(2) Four haploid cells
(3) Two haploid cells
(4) Four diploid cells
Which of the following events occurs during metaphase I of meiosis?
(1) Homologous chromosomes pair up and align at the equator
(2) Sister chromatids separate
(3) Nuclear envelope reforms
(4) Chromosomes condense
Fill in the blank: The division of the nucleus during cell division is called __________.
Fill in the blank: The enzyme that helps unwind DNA during replication is called __________.
Fill in the blank: The process by which a cell self-destructs when it is damaged or no longer needed is called __________.
Fill in the blank: The process by which gametes are formed is called __________.
True or False: Homologous chromosomes separate during meiosis I.
True or False: Meiosis occurs in somatic (body) cells.
True or False: Mitosis results in two daughter cells that are genetically identical to the parent cell.
True or False: Plant cells form a cell plate during cytokinesis, while animal cells form a cleavage furrow.
