Test Attempted : Cell Division And Cell Cycle (Class 11th Biology) Revision Test | MCQs For NEET
Total Questions : 25
Attempted : 5
Skipped : 20
Correct Responses : 4
Incorrect Responses : 1
Marks Obtained
Q.1. Golgi complex and endoplasmic reticulum cannot be seen during
Your Response : (b) late prophase
Correct Response : b) late prophase
Marks : 1
Answer:
(b) late prophase
Explanation: Cells, when viewed under microscope at the end of prophase, do not show golgi complex, endoplasmic reticulum, nucleolus and nuclear envelope.
Q.2. Cell plate grows from
Your Response : (b) centre to the walls
Correct Response : b) centre to the walls
Marks : 1
Answer:
(b) centre to the walls
Explanation: Cell plate grows during cytokinesis from centre to the walls
Q.3. Choose the correct sequence. A. Chromatin condensation B. Protein synthesis C. Duplication of centrioles D. Centrioles moves towards opposite poles
Your Response : (b) C, B, A, D
Correct Response : b) C, B, A, D
Marks : 1
Answer:
(b) C, B, A, D
Explanation: Duplication of centrioles occurs in S-phase.Protein synthesis occurs in G2 phase.chromatin condensation is followed by centrioles movement towards the poles. (Prophase)
Q.4. If you are provided with root-tips of onion in your class and are asked to count the chromosomes which of the following stages can you most conveniently look into
Your Response : (d) Metaphase
Correct Response : d) Metaphase
Marks : 1
Answer:
(d) Metaphase
Q.5. Karyokinesis is the term used for
Your Response : (c) division of nucleus
Correct Response : d) separation of daughter chromosomes
Marks : 0
Answer:
(d) separation of daughter chromosomes
Explanation: Karyokinesis means separation of daughter chromosomes.Cytokinesis means division of cytoplasm
Q.6. During which stage the chromosomes first become visible
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Correct Response : c) Prophase
Marks : 0
Answer:
(c) Prophase
Q.7. In mitosis, nuclear envelope and nucleolus disappear during
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Correct Response : c) Prophase
Marks : 0
Answer:
(c) Prophase
Q.8. Arrange the following events of meiosis in the correct sequence: I. Terminalization II. Crossing over III. Synapsis IV. Disjunction of genomes The correct sequences
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Correct Response : b) III, II, I, IV
Marks : 0
Answer:
(b) III, II, I, IV
Explanation: III, II, I, IV
Q.9. The major event that occurs during the anaphase of mitosis, which brings about the equal distribution of chromosomes, is
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Correct Response : a) splitting of the centromeres
Marks : 0
Answer:
(a) splitting of the centromeres
Q.10. what type of plant is formed when colchicine is used in the process of development of Raphanobrassica?
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Correct Response : d) Allotetraploid
Marks : 0
Answer:
(d) Allotetraploid
Q.11. Meiosis occurs for the human female in ______.
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Correct Response : c) Ovary
Marks : 0
Answer:
(c) Ovary
Q.12. Choose the correct sequence. A. Pachytene B. Zygotene C. Leptotene D. Diakinesis E. Diplotene
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Correct Response : c) C, B, A, E, D
Marks : 0
Answer:
(c) C, B, A, E, D
Explanation: These are the five phases of prophase I of Meiosis I based on the chromosomal behaviour
Q.13. How many chromosomes are there in onion root tip cell?
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Correct Response : b) 16
Marks : 0
Answer:
(b) 16
Explanation: There are 16 chromosomes in onion root tip cell.
Q.14. Lampbrush chromosomes are observed in
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Correct Response : d) Meiotic prophase
Marks : 0
Answer:
(d) Meiotic prophase
Q.15. Which of the following cellular structures always disappears during mitosis and meiosis?
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Correct Response : b) Nucleolus and nuclear envelope
Marks : 0
Answer:
(b) Nucleolus and nuclear envelope
Q.16. Centromere is a constituent of
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Correct Response : c) Chromosome
Marks : 0
Answer:
(c) Chromosome
Explanation: Chromosome
Q.17. In which phase of cell cycle, proteins are synthesised?
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Correct Response : c) G2
Marks : 0
Answer:
(c) G2
Explanation: In G2 phase of cell cycle, proteins are synthesised for mitosis and cell growth continues
Q.18.
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Correct Response : b) Early metaphase
Marks : 0
Answer:
(b) Early metaphase
Explanation: Chromosomes are positioning towards the equator.
Q.19. The stage in which daughter chromosomes move toward the poles of the spindle is
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Correct Response : a) Anaphase
Marks : 0
Answer:
(a) Anaphase
Q.20. Synaptonemal complex dissolves in _____ stage.
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Correct Response : d) Diplotene
Marks : 0
Answer:
(d) Diplotene
Explanation: Synaptonemal complex dissolves in diplotene stage of Prophase I.
Q.21. Synapsis occurs between
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Correct Response : d) Two homologous chromosomes
Marks : 0
Answer:
(d) Two homologous chromosomes
Explanation: Two homologous chromosomes
Q.22. Division of nucleus without being followed by cytokinesis results into
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Correct Response : d) Multinucleate condition
Marks : 0
Answer:
(d) Multinucleate condition
Q.23. A cell plate is laid down during
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Correct Response : a) Cytokinesis
Marks : 0
Answer:
(a) Cytokinesis
Explanation: Cytokinesis
Q.24. Crossing over results the exchange of genetic material, which occurs between
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Correct Response : d) Homologous chromosomes
Marks : 0
Answer:
(d) Homologous chromosomes
Q.25. The number of chromosome and the amount of DNA are changed in
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Correct Response : b) Anaphase and S phase
Marks : 0
Answer:
(b) Anaphase and S phase
Explanation: Anaphase and S phase