Cell Division
ICSE · Class 10 · Biology
Most important questions from Cell Division for ICSE Class 10 Biology board exam 2026. MCQs, short answer, and long answer questions with marks.
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Which phases are included in interphase?
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G1 phase, S phase, G2 phase
Interphase consists of three phases: G1 phase (growth and protein synthesis), S phase (DNA replication), and G2 phase (preparation for division). M phase and prophase are part of the division phase.
Which of the following are functions of mitosis?
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Growth, Repair, Reproduction in unicellular organisms
Mitosis functions in growth of organisms, repair of tissues, reproduction in unicellular organisms, regeneration, and replacement of old cells. Gamete formation and genetic variation are functions of meiosis.
Which is the longest phase of mitosis?
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Prophase
Prophase is the longest phase of mitosis. During this phase, chromatin condenses into chromosomes, the nuclear membrane breaks down, and the spindle apparatus forms.
During which phase of mitosis do chromosomes align at the equator?
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Metaphase
During metaphase, chromosomes align at the equatorial plate of the cell. This is when chromosomes are most clearly visible and are attached to spindle fibers at their centromeres.
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