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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
Mitotic Metaphase
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Spindle fibers attach to kinetochores of chromosomes duringSpindle fibres attach to the kinetochores of chromosomes during metaphase. At this stage the chromosomes align at the metaphase plate, with spindle fibres from opposite poles attached to the kinetochores of sister chromatids, ready for separation in anaphase.
Substages of Meiotic Prophase I
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Given below are two Statements: Statement I: Chromosomes become gradually visible under light microscope during leptotene stage. Statement II: The beginning of diplotene stage is recognized by dissolution of synaptonemal complex. In the light of the above statements, choose the correct answer from the options given below:During leptotene, chromosomes gradually condense and become visible under the light microscope – Statement I is true. The beginning of diplotene is recognised by the dissolution of the synaptonemal complex – Statement II is true. So both statements are true.
Sequence of Cell Cycle Phases
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Following are the stages of cell division: A. Gap 2 phase B. Cytokinesis C. Synthesis phase D. Karyokinesis E. Gap 1 phase Choose the correct sequence of stages from the options given below:The cell cycle proceeds as: Gap 1 ($G_1$) phase → Synthesis (S) phase → Gap 2 ($G_2$) phase → M phase, in which karyokinesis (division of the nucleus) is followed by cytokinesis (division of the cytoplasm). So the sequence is E-C-A-D-B.
Sub-stages of Meiotic Prophase I
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Match List-I with List-II regarding sub-phases of meiotic prophase I and their specific characters.
Pick the matching item from Column II for each row.
Column I
- A. Diakinesis
- B. Pachytene
- C. Zygotene
- D. Leptotene
Column II
- I. Synaptonemal complex formation
- II. Completion of terminalisation of chiasmata
- III. Chromosomes look like thin threads
- IV. Appearance of recombination nodules
Correct answer: A → II, B → IV, C → I, D → III
Diakinesis – completion of terminalisation of chiasmata Pachytene – appearance of recombination nodules Zygotene – synaptonemal complex formation Leptotene – chromosomes look like thin threads Correct match: A-II, B-IV, C-I, D-III.
That is every question in Cell Cycle and Cell Division for this filter.
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