Q.1.
ycle, cell division gneet Study Companion NEET and AIIMS mcq on Cell cycle, cell division Q359) Select the correct option from Column-I and Column-II.
| Column-I | Column-II |
| (A) G1 phase | (p) Synthesis of new DNA |
| (B) G2 phase | (q) Synthesis of DNA does not occur |
| (C) S phase | (r) DNA synthesis stops |
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0%
a) (A - r) (B - p) (C - q)
-
0%
b) (A - p) (B - r) (C - q)
-
0%
c) (A - r) (B - q) (C - p)
-
100%
d) (A - q) (B - r) (C - p)
Q.2.
During which of the following stage of division nuclear membrane and nucleolus reappear ?
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50%
a) Telophase
-
0%
b) Prophase
-
50%
c) Anaphase
-
0%
d) Metaphase
Q.3.
Series of cell division is :
-
50%
a) prophase, metaphase, anaphase, telophase
-
50%
b) prophase, anaphase, metaphase, telophase
-
0%
c) anaphase, metaphase, telophase, prophase
-
0%
d) prophase, metaphase, telophase, anaphase
Q.4.
If you are provided with root-tips of onion in your class and are asked to count the chromosome, which of the following stage can you most conviently look into
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0%
a) Anaphase
-
50%
b) Metaphase
-
0%
c) Prophase
-
50%
d) Telophase
Q.5.
Assertion (A) : Phase of cell division is also known as dividing phase. Reason (R) : In mitotic phase new cells are produced from pre-existing cells through meiosis division.
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0%
a) Both A and R are true and R is the correct explanation of A.
-
100%
b) Both A and R are true but the R is not the correct explanation of A.
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0%
c) A is true statement but R is false.
-
0%
d) Both A and R are false.
Q.6.
Spindle fibre shorten.
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50%
a) Prophase
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0%
b) Metaphase
-
50%
c) Telophase
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0%
d) Anaphase
Q.7.
A cell divides every one minute. At this rate of division it can fill a 100 ml of beaker in one hour. How much time does it take to fill a 50 ml beaker ?
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50%
a) 30 minute
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0%
b) 32 minute
-
50%
c) 59 minute
-
0%
d) 60 minute
Q.8.
How many meiotic stage are essential for producing 28 cells from one cell ?
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50%
a) 7
-
0%
b) 14
-
50%
c) 28
-
0%
d) 64
Q.9.
Post mitotic gap phase and synthesis phase of cell cycle are also respectively referred to as :
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0%
c) G1 and G2
-
100%
a) G2 and S
-
0%
b) G1 and S
-
0%
d) S and G2
Q.10.
Approximately how many cells are present in the body of an adult person ?
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0%
a) 1014
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0%
b) 1015
-
100%
c) 1018
-
0%
d) 1021
Q.11.
The stage of mitosis during which the nucleolus disintegrates and chromosomes appear is knownas
-
50%
a) Prophase
-
50%
b) Metaphase
-
0%
c) Interphase
-
0%
d) Anaphase
Q.12.
At which of the following stage4s of cell cycle proteins and microtubules, required for mitosis, are synthesized ?
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0%
a) Interphase
-
100%
b) G2 phase
-
0%
c) M phase
-
0%
d) G1 phase
Q.13.
The chromosomes are distributed in two cells in half thir number is called.
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0%
a) Cellcycle
-
50%
b) Cytokineis
-
50%
c) Heterotypic division
-
0%
d) Mitosis
Q.14.
What is correct ?
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0%
a) G2 – phase follows mitotic phase.
-
100%
b) DNA – replication occurs in S – phase.
-
0%
c) DNA – content become double during G1 phase.
-
0%
d) Duration of interphase is short as compared to M – phase.
Q.15.
During gamete formation, the enzyme recombinase participate during :
-
50%
a) Prophase-I
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0%
b) Prophase-II
-
50%
c) Mataphase-I
-
0%
d) Anaphase-II
Q.16.
Match the following :
| Coulmn-I | Coulmn-II |
| (A) G1 Phase | (i) Synthesis of proteins and Microtubules |
| (B) S Phase | (ii) Growth phase |
| (C) G2 Phase | (iii) Replication of DNA |
-
0%
a) (A - i) (B - ii) (C - iii)
-
100%
b) (A - ii) (B - iii) (C - i)
-
0%
c) (A - i) (B - iii) (C - ii)
-
0%
d) (A - iii) (B - ii) (C - i)
Q.17.
Which is fundamental property of all living organisms ?
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0%
a) Respiration
-
0%
b) Germination
-
50%
c) Photosynthesis
-
50%
d) Growth
Q.18.
During which of the following phases of mitosis asters appear around the centroles ?
-
50%
a) Prophase
-
50%
b) Metaphase
-
0%
c) Anaphase
-
0%
d) Telophase
Q.19.
During interphase.......
-
0%
a) Chromosomes can be observed only as chromatin.
-
0%
b) Replication of DNA occurs.
-
50%
c) Replication of centriole.
-
50%
d) All the above.
Q.20.
If there are four chromosomes present during prophase – I, how many chromosome are there in each cell at the end of anaphase - II
-
50%
a) 2
-
50%
b) 4
-
0%
c) 8
-
0%
d) 16
Q.21.
Select correct statement’s for cell cycle. (i) Yeast cell can complete on cell cycle in every 90 minutes (ii) A period between creation of a cell and division of that cell. (iii) Cell cycle is mainly divided into interphase and differentiation like two phases.
-
50%
a) (i) and (ii) only
-
0%
b) (i) and (iii) only
-
50%
c) (ii) and (iii) only
-
0%
d) (i), (ii) and (iii)
Q.22.
Which of the following statement is true for mitosis ?
-
0%
a) Cytokinesis preceedes karyokinesis
-
50%
b) Karyokinesis preceedes cytokinesis
-
50%
c) Cytokinesis and karyokinesis occur together
-
0%
d) Cytokinesis and karyokinesis are random
Q.23.
Which stage of mitosis is indicated by given diagram ?
-
0%
a) Metaphase
-
50%
b) Telophase
-
50%
c) Interphase (G1)
-
0%
d) Late Prophase
Q.24.
Synthesis of RNA and protein takes place in which phase of the cell cycle ?
-
50%
a) S-phase
-
50%
b) M-phase
-
0%
c) G1-phase
-
0%
d) Metaphase
Q.25.
A. During meiosis, the genetic material is replicated twice whereas the cell divides one. R. Meiosis takes place in plants and animals during the formation of reproductive cells.
-
0%
a) Both A and R are true and R is correct explanation of A.
-
0%
b) Both A and R are true and R is not correct explanation of A
-
100%
c) A is true and R is wrong
-
0%
d) A is wrong and R is true
Q.26.
Which one is a correct pair ?
-
0%
a) M phase - Interphase
-
100%
b) S phase – DNA synthesis
-
0%
c) G1 phase – RNA and DNA synthesis
-
0%
d) G2 phase – Growth phase
Q.27.
Significance of meiosis is associated with :
-
0%
a) Growth of the body
-
50%
b) Sexual reproduction
-
50%
c) DNA duplication
-
0%
d) Asexual reproduction
Q.28.
Match the following :
| Coulmn-I | Coulmn-II |
| (A) Laptotene | (i) Nucleolus disappears |
| (B) Zygotence | (ii) Appearance of recombination nodules |
| (C) Pachytene | (iii) Develoment of Synapsis |
| (D) Diplotene | (iv) Chromosome appears filamentous |
| (E) Daikinesis | (v) Genes exchange at chaismata |
-
0%
a) (A - iv) (B - iii) (C - ii) (D - v) (E - i)
-
50%
b) (A - ii) (B - iii) (C - iv) (D - r) (E - i)
-
50%
c) (A - v) (B - iv) (C - iii) (D - ii) (E - i)
-
0%
d) (A - i) (B - ii) (C - iii) (D - iv) (E - v)
Q.29.
“The number of chiasmata depends on chromosomes” – What is the mistake in the given statement ?
-
50%
a) Size of chromosome – Word is not mentioned
-
50%
b) Number of chromosome – Word is not mentioned
-
0%
c) Width of chromosome – Word in not mentioned
-
0%
d) Length of chromosome – Word is not mentioned
Q.30.
Mitosis can occur in
-
0%
a) Diploid cell only
-
100%
b) Haploid and diploid cells both
-
0%
c) Pollen mother cells
-
0%
d) Haploid cell only