Pratice these important questions from the chapter – cell division and cell cycle (class 11th Biology) for the viva, neet, and other competitive entrance exams.
Cell Division and Cell Cycle (Class 11th Biology) Revision Test | MCQs For NEET
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Questions
Q1. Golgi complex and endoplasmic reticulum cannot be seen during
Cells, when viewed under microscope at the end of prophase, do not show golgi complex, endoplasmic reticulum, nucleolus and nuclear envelope.
Q2. Cell plate grows from
Cell plate grows during cytokinesis from centre to the walls
Q3. Choose the correct sequence. A. Chromatin condensation B. Protein synthesis C. Duplication of centrioles D. Centrioles moves towards opposite poles
Duplication of centrioles occurs in S-phase.Protein synthesis occurs in G2 phase.chromatin condensation is followed by centrioles movement towards the poles. (Prophase)
Q4. 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
Q5. Karyokinesis is the term used for
Karyokinesis means separation of daughter chromosomes.Cytokinesis means division of cytoplasm
Q6. During which stage the chromosomes first become visible
Q7. In mitosis, nuclear envelope and nucleolus disappear during
Q8. Arrange the following events of meiosis in the correct sequence: I. Terminalization II. Crossing over III. Synapsis IV. Disjunction of genomes The correct sequences
III, II, I, IV
Q9. The major event that occurs during the anaphase of mitosis, which brings about the equal distribution of chromosomes, is
Q10. what type of plant is formed when colchicine is used in the process of development of Raphanobrassica?
Q11. Meiosis occurs for the human female in ______.
Q12. Choose the correct sequence. A. Pachytene B. Zygotene C. Leptotene D. Diakinesis E. Diplotene
These are the five phases of prophase I of Meiosis I based on the chromosomal behaviour
Q13. How many chromosomes are there in onion root tip cell?
There are 16 chromosomes in onion root tip cell.
Q14. Lampbrush chromosomes are observed in
Q15. Which of the following cellular structures always disappears during mitosis and meiosis?
Q16. Centromere is a constituent of
Chromosome
Q17. In which phase of cell cycle, proteins are synthesised?
In G2 phase of cell cycle, proteins are synthesised for mitosis and cell growth continues
Q18.
Chromosomes are positioning towards the equator.
Q19. The stage in which daughter chromosomes move toward the poles of the spindle is
Q20. Synaptonemal complex dissolves in _____ stage.
Synaptonemal complex dissolves in diplotene stage of Prophase I.
Q21. Synapsis occurs between
Two homologous chromosomes
Q22. Division of nucleus without being followed by cytokinesis results into
Q23. A cell plate is laid down during
Cytokinesis
Q24. Crossing over results the exchange of genetic material, which occurs between
Q25. The number of chromosome and the amount of DNA are changed in
Anaphase and S phase
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