Cell Cycle and Division
Biology ⇒ Cell Biology
Cell Cycle and Division starts at 8 and continues till grade 12.
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A cell spends most of its life in which phase of the cell cycle?
A cell with 8 chromosomes undergoes mitosis. How many chromosomes will each daughter cell have after division?
A diploid cell with 12 chromosomes undergoes meiosis. How many chromosomes will each gamete have?
Describe the main events that occur during prophase of mitosis.
Describe the role of cyclins and cyclin-dependent kinases (CDKs) in cell cycle regulation.
Describe what happens during telophase of mitosis.
A cell with 8 chromosomes undergoes mitosis. How many chromosomes will each daughter cell have after division?
A diploid cell with 12 chromosomes undergoes meiosis. How many chromosomes will each gamete have?
Which checkpoint in the cell cycle ensures that DNA is undamaged before replication?
(1) G1 checkpoint
(2) G2 checkpoint
(3) M checkpoint
(4) S checkpoint
Which enzyme is responsible for unwinding DNA during replication?
(1) DNA polymerase
(2) DNA ligase
(3) Helicase
(4) Primase
Which of the following best describes the outcome of meiosis II?
(1) Two diploid cells
(2) Four haploid cells
(3) Two haploid cells
(4) Four diploid cells
Which of the following best explains why meiosis is essential for sexual reproduction?
(1) It maintains chromosome number across generations
(2) It produces identical cells
(3) It repairs damaged tissues
(4) It increases cell size
Fill in the blank: The enzyme that joins Okazaki fragments during DNA replication is __________.
Fill in the blank: The exchange of genetic material between homologous chromosomes during meiosis is called __________.
Fill in the blank: The phase of mitosis where sister chromatids are separated and pulled to opposite poles is called __________.
Fill in the blank: The process by which programmed cell death occurs is called __________.
True or False: Crossing over occurs during prophase I of meiosis.
True or False: DNA replication occurs during the S phase of the cell cycle.
True or False: Homologous chromosomes separate during anaphase I of meiosis.
True or False: In animal cells, a cell plate forms during cytokinesis.
