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Q.14. Lampbrush chromosomes are observed in
- Mitotic prophase
- Mitotic metaphase
- Meiotic metaphase
- Meiotic prophase
Answer:
(d) Meiotic prophase
Cell Division And Cell Cycle (Class 11th Biology) Revision Test | MCQs For NEET
25 Questions 11 Attempts 2.36K Seen
Pratice these important questions from the chapter - cell division and cell cycle (class 11th Biology) for the viva, neet, and other competitive entrance exams. Start Test without Login in
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Action | Q.No. | Que title | Option 1 (a) | Option 2 (b) | Option 3 (c) | Option 4 (d) |
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1 | Golgi complex and endoplasmic reticulum cannot be seen during | late telophase | late prophase | early anaphase | late metaphase | |
2 | Cell plate grows from | walls to the centre | centre to the walls | in patches | simultaneously | |
3 | Choose the correct sequence. A. Chromatin condensation B. Protein synthesis C. Duplication of centrioles D. Centrioles moves towards opposite poles | C, A, B, D | C, B, A, D | C, D, B, A | A, C, D, B | |
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 | Prophase | Anaphase | Telophase | Metaphase | |
5 | Karyokinesis is the term used for | division of cytoplasm | division of nucleoplasm | division of nucleus | separation of daughter chromosomes | |
6 | During which stage the chromosomes first become visible | Anaphase | Metaphase | Prophase | Telophase | |
7 | In mitosis, nuclear envelope and nucleolus disappear during | Metaphase | Interphase | Prophase | Telophase | |
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 | II, I, IV, III | III, II, I, IV | IV, III, II, I | I, IV, III, II | |
9 | The major event that occurs during the anaphase of mitosis, which brings about the equal distribution of chromosomes, is | splitting of the centromeres | splitting of the chromatids | replication of the genetic material | condensation of the chromatin | |
10 | what type of plant is formed when colchicine is used in the process of development of Raphanobrassica? | Autotetraploid | Haploid | Triploid | Allotetraploid | |
11 | Meiosis occurs for the human female in ______. | Pancreas | Liver | Ovary | Kidney | |
12 | Choose the correct sequence. A. Pachytene B. Zygotene C. Leptotene D. Diakinesis E. Diplotene | C, B, A, D, E | C, A, B, E, D | C, B, A, E, D | D, B, C, E, A | |
13 | How many chromosomes are there in onion root tip cell? | 6 | 16 | 26 | 36 | |
14 | Lampbrush chromosomes are observed in | Mitotic prophase | Mitotic metaphase | Meiotic metaphase | Meiotic prophase | |
15 | Which of the following cellular structures always disappears during mitosis and meiosis? | Plasma membrane | Nucleolus and nuclear envelope | Plastids | none of these | |
16 | Centromere is a constituent of | Ribosome | ER | Chromosome | Mitochondrion | |
17 | In which phase of cell cycle, proteins are synthesised? | G0 | G1 | G2 | S | |
18 | Early prophase | Early metaphase | Early telophase | Early anaphase | ||
19 | The stage in which daughter chromosomes move toward the poles of the spindle is | Anaphase | Metaphase | Prophase | Telophase | |
20 | Synaptonemal complex dissolves in _____ stage. | Zygotene | Pachytene | Diakinesis | Diplotene | |
21 | Synapsis occurs between | A male and female gametes | Ribosome and m-RNA | Spindle fibres and centromeres | Two homologous chromosomes | |
22 | Division of nucleus without being followed by cytokinesis results into | Phargmoplast | Polyploidy | Uninucleate condition | Multinucleate condition | |
23 | A cell plate is laid down during | Cytokinesis | Interphase | Karyokinesis | None of these | |
24 | Crossing over results the exchange of genetic material, which occurs between | Non-sister chromosomes | Sister chromatids | Non-homologous chromosome | Homologous chromosomes | |
25 | The number of chromosome and the amount of DNA are changed in | Metaphase and M phase | Anaphase and S phase | Interphase and S phase | None of these |
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