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1 of 25
Q.1 Golgi complex and endoplasmic reticulum cannot be seen during
- late telophase
- late prophase
- early anaphase
- late metaphase
2 of 25
Q.2 Cell plate grows from
- walls to the centre
- centre to the walls
- in patches
- simultaneously
3 of 25
Q.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 of 25
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
- Prophase
- Anaphase
- Telophase
- Metaphase
5 of 25
Q.5 Karyokinesis is the term used for
- division of cytoplasm
- division of nucleoplasm
- division of nucleus
- separation of daughter chromosomes
6 of 25
Q.6 During which stage the chromosomes first become visible
- Anaphase
- Metaphase
- Prophase
- Telophase
7 of 25
Q.7 In mitosis, nuclear envelope and nucleolus disappear during
- Metaphase
- Interphase
- Prophase
- Telophase
8 of 25
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
- II, I, IV, III
- III, II, I, IV
- IV, III, II, I
- I, IV, III, II
9 of 25
Q.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 of 25
Q.10 what type of plant is formed when colchicine is used in the process of development of Raphanobrassica?
- Autotetraploid
- Haploid
- Triploid
- Allotetraploid
11 of 25
Q.11 Meiosis occurs for the human female in ______.
- Pancreas
- Liver
- Ovary
- Kidney
12 of 25
Q.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 of 25
Q.13 How many chromosomes are there in onion root tip cell?
- 6
- 16
- 26
- 36
14 of 25
Q.14 Lampbrush chromosomes are observed in
- Mitotic prophase
- Mitotic metaphase
- Meiotic metaphase
- Meiotic prophase
15 of 25
Q.15 Which of the following cellular structures always disappears during mitosis and meiosis?
- Plasma membrane
- Nucleolus and nuclear envelope
- Plastids
- none of these
16 of 25
Q.16 Centromere is a constituent of
- Ribosome
- ER
- Chromosome
- Mitochondrion
17 of 25
Q.17 In which phase of cell cycle, proteins are synthesised?
- G0
- G1
- G2
- S
18 of 25
Q.18
- Early prophase
- Early metaphase
- Early telophase
- Early anaphase
19 of 25
Q.19 The stage in which daughter chromosomes move toward the poles of the spindle is
- Anaphase
- Metaphase
- Prophase
- Telophase
20 of 25
Q.20 Synaptonemal complex dissolves in _____ stage.
- Zygotene
- Pachytene
- Diakinesis
- Diplotene
21 of 25
Q.21 Synapsis occurs between
- A male and female gametes
- Ribosome and m-RNA
- Spindle fibres and centromeres
- Two homologous chromosomes
22 of 25
Q.22 Division of nucleus without being followed by cytokinesis results into
- Phargmoplast
- Polyploidy
- Uninucleate condition
- Multinucleate condition
23 of 25
Q.23 A cell plate is laid down during
- Cytokinesis
- Interphase
- Karyokinesis
- None of these
24 of 25
Q.24 Crossing over results the exchange of genetic material, which occurs between
- Non-sister chromosomes
- Sister chromatids
- Non-homologous chromosome
- Homologous chromosomes
25 of 25
Q.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