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Biology
Cell Cycle and Cell Division
87 questions from 33 papers, each with its answer.
- 87 questions
- 33 papers
- 2.47% of Biology
Phases of the cell cycle
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Match List-I with List-II and choose the correct answer from the options given below:
Pick the matching item from Column II for each row.
Column I
- A. Cells are metabolically active and proliferate
- B. DNA replication takes place
- C. Proteins are synthesised
- D. Quiescent stage with metabolically active cells
Column II
- I. G2 phase
- II. G1 phase
- III. G0 phase
- IV. S phase
Correct answer: A → II, B → IV, C → I, D → III
Cells are metabolically active and proliferate during G1 phase (A-II); DNA replication takes place during S phase (B-IV); Proteins are synthesised during G2 phase (C-I); Quiescent stage with metabolically active but non-dividing cells is G0 phase (D-III).
Meiosis - Prophase I substages
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Recombination between homologous chromosomes is completed by the end ofCrossing over (recombination) between homologous chromosomes occurs at the pachytene stage of prophase I and is completed by its end.
Types of chromosomes based on centromere position
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Match List-I with List-II and choose the correct answer from the options given below:
Pick the matching item from Column II for each row.
Column I
- A. Metacentric chromosome
- B. Sub-metacentric chromosome
- C. Acrocentric chromosome
- D. Telocentric chromosome
Column II
- I. Chromosome has a terminal centromere
- II. Middle centromere forming two equal arms of chromosome
- III. Centromere is slightly away from the middle of chromosome resulting into two unequal arms
- IV. Centromere is situated close to its end forming one extremely short and one very long arm
Correct answer: A → II, B → III, C → IV, D → I
Metacentric chromosome has a middle centromere forming two equal arms (A-II); Sub-metacentric chromosome has a centromere slightly away from the middle, resulting in two unequal arms (B-III); Acrocentric chromosome has a centromere close to its end, forming one extremely short and one very long arm (C-IV); Telocentric chromosome has a terminal centromere (D-I).
Substages of prophase I of meiosis
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Match List-I (Event) with List-II [Stage of Prophase-I (Meiosis-I)] and choose the correct answer from the options given below:
Pick the matching item from Column II for each row.
Column I
- A. Chiasmata formation
- B. Crossing over
- C. Synaptonemal complex formation
- D. Terminalisation of chiasmata
Column II
- I. Pachytene
- II. Diakinesis
- III. Diplotene
- IV. Zygotene
Correct answer: A → III, B → I, C → IV, D → II
Chiasmata formation occurs at diplotene (A-III); Crossing over occurs at pachytene (B-I); Synaptonemal complex formation occurs at zygotene (C-IV); Terminalisation of chiasmata occurs at diakinesis (D-II).
That is every question in Cell Cycle and Cell Division for this filter.
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