Cell Cycle And Cell Division — DPP 1

20 NEET questions from Cell Cycle And Cell Division, with answers and explanations. Attempt it as a timed test to get scoring, accuracy breakdown and mistake tracking.

Attempt this test free 20 questions · 30 minutes · +80 marks
1
In which stage of cell division, number of chromosomes can be best counted?
  1. A Prophase
  2. B Metaphase
  3. C Telophase
  4. D Interphase
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Correct answer: B

2
The two asters together with spindle fibres form:-
  1. A Mitotic apparatus
  2. B Centromere
  3. C Astral fibres
  4. D Centrosome
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Correct answer: A

3
In which stage of mitosis, the chromosomes are composed of two chromatids ?
  1. A Prophase & metaphase
  2. B Anaphase and telophase
  3. C Prophase and telophase
  4. D Metaphase and anaphase
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Correct answer: A

4
In which order, cytokinesis occurs in plants:
  1. A Centripetal
  2. B Centrifugal
  3. C Oblique
  4. D Equatorial
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Correct answer: B

5
Which does not occurs in prophase ?
  1. A Decondensation of chromatin
  2. B Condensation of chromatin
  3. C Appearance of chromosome
  4. D Disappearance of nuclear membrane and nucleolus
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Correct answer: A

6
Centromere is required for -
  1. A Movement of chromosomes towards poles
  2. B Cytoplasmic cleavage
  3. C Crossing over
  4. D Transcription
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Correct answer: A

7
During $\mathrm { G } _ { 2 }$ - phase a diploid cell contains the amount of DNA equal to a :-
  1. A Diploid cell
  2. B Tetraploid cell
  3. C Haploid cell
  4. D Hexaploid cell
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Correct answer: B

8
During cell division, spindle fibres attach to which part of chromosome ?
  1. A Primary constriction
  2. B Secondary constriction
  3. C Telomere
  4. D Satellite
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Correct answer: A

9
M-phase of cell cycle consist of :-
  1. A $\mathrm { G } _ { 1 } , \mathrm {~S}$ and $\mathrm { G } _ { 2 }$ phase
  2. B Prophase, Metaphase, Anaphase, Telophase
  3. C Interphase, Prophase, Metaphase, Anaphase, Telophase
  4. D Only prophase
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Correct answer: B

10
How many steps of division will occur in an isolated tip cell to form 128 cells ?
  1. A 128
  2. B 127
  3. C 32
  4. D 7
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Correct answer: D

11
The number of chromatids in a chromosome at $\mathrm { G } _ { 2 }$ state of cell cycle will be:-
  1. A One
  2. B Two
  3. C Four
  4. D Eight
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Correct answer: B

12
If the cell is diploid in $\mathrm { G } _ { 1 }$ than after the S phase cell remain/become :-
  1. A $n$
  2. B $4 n$
  3. C $8 n$
  4. D $2 n$
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Correct answer: D

13
At which stage of the cell cycle are histone proteins synthesized in a eukaryotic cell ?
  1. A During telophase
  2. B During S-phase
  3. C During $\mathrm { G } _ { 2 } -$ phase
  4. D During entire prophase
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Correct answer: B

14
Nuclear membrane disappears in :-
  1. A Late prophase
  2. B Early prophase
  3. C Metaphase
  4. D Telophase
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Correct answer: A

15
During which stage a diploid cell becomes tetraploid in mitosis?
  1. A $\mathrm { G } _ { 2 }$
  2. B Prophase
  3. C Metaphase
  4. D Anaphase
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Correct answer: D

16
Prophase which follows the $S$ and $\mathrm { G } _ { 2 }$ phases of interphase, is the first stage of :-
  1. A Meiosis-II
  2. B Karyokinesis
  3. C Interphase
  4. D $\mathrm { G } _ { 1 }$ phase
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Correct answer: B

17
Many cells function properly and divide mitotically even though they do not have :-
  1. A Plasma membrane
  2. B Cytoskeleton
  3. C Mitochondria
  4. D Plastids
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Correct answer: D

18
Nuclear envelope reappears at :-
  1. A Metaphase
  2. B Prophase
  3. C Anaphase
  4. D Telophase
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Correct answer: D

19
How many chromosomes shall be present in a diploid cell at mitotic anaphase if ovum of same species has ten chromosomes?
  1. A 10 (Ten)
  2. B 20 (Twenty)
  3. C 30 (Thirty)
  4. D 40 (Forty)
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Correct answer: D

20
Gap between division phase and start of DNA-replication is called :-
  1. A $\mathrm { G } _ { 1 }$ - phase
  2. B $\mathrm { G } _ { 2 }$ - phase
  3. C M - phase
  4. D Interkinesis
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Correct answer: A

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