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11. |
Cell division in eukaryotic cells involves: |
A. |
Karyokinesis only |
B. |
Cytokinesis only |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option C
Explanation:
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12. |
Cell division in animal cells occur by: |
A. |
Amitosis |
B. |
Mitosis |
C. |
Meiosis |
D. |
All of these methods |
Answer: Option D
Explanation:
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13. |
During amitotic cell division in animals there is: |
A. |
Formation of chromosomes, spindle, and division of chromatids |
B. |
Reduction in the number of chromosomes in the daughter cells |
C. |
Only elongation of nucleus and subsequent breaking into two daughters |
D. |
None of these |
Answer: Option C
Explanation:
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14. |
Mitosis occurs: |
A. |
Somatic cells only |
B. |
Reproductive cells only |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option A
Explanation:
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15. |
Prophase in mitotic division is characterized by which of these events: |
A. |
Nuclear membrane starts disintigrating |
B. |
Chromatin material changes into chromosomes |
C. |
Nucleolus starts disappearing and centrioles start moving towards opposite poles |
D. |
All of these |
Answer: Option D
Explanation:
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16. |
Spindle is formed during cell division by: |
A. |
Centrioles and astral rays |
B. |
Nucleolus |
C. |
Both (a) & (b) |
D. |
None of these |
Answer: Option C
Explanation:
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17. |
Mitosis is a process of cell division during which there is: |
A. |
Doubling of chromosomes at the end of the process |
B. |
Reduction in the number of chromosomes at the end |
C. |
Distribution of same number of chromosomes in daughter cells |
D. |
None of these |
Answer: Option C
Explanation:
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18. |
Mitotic cell division results in the: |
A. |
Reduction in chromosomal number |
B. |
Doubling of chromosomal |
C. |
No change in chromosomal number |
D. |
Increase in cell volume |
Answer: Option C
Explanation:
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19. |
Meiosis differs from mitosis because in it: |
A. |
Homologous chromosomes pair and exchange segments |
B. |
Chromosomal number is halved |
C. |
The four daughters-nuclei formed are genetically dissimilar |
D. |
All of these |
Answer: Option B
Explanation:
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20. |
Separation of chromatids and their movement to opposite poles of the spindle occurs in which of these: |
A. |
Prophase |
B. |
Metaphase |
C. |
Anaphase |
D. |
Telophase |
Answer: Option C
Explanation:
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