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
  • a) (A - r) (B - p) (C - q)
  • b) (A - p) (B - r) (C - q)
  • c) (A - r) (B - q) (C - p)
  • d) (A - q) (B - r) (C - p)
Q.2
During which of the following stage of division nuclear membrane and nucleolus reappear ?
  • a) Telophase
  • b) Prophase
  • c) Anaphase
  • d) Metaphase
Q.3
Series of cell division is :
  • a) prophase, metaphase, anaphase, telophase
  • b) prophase, anaphase, metaphase, telophase
  • c) anaphase, metaphase, telophase, prophase
  • 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
  • a) Anaphase
  • b) Metaphase
  • c) Prophase
  • 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.
  • a) Both A and R are true and R is the correct explanation of A.
  • b) Both A and R are true but the R is not the correct explanation of A.
  • c) A is true statement but R is false.
  • d) Both A and R are false.
Q.6
Spindle fibre shorten.
  • a) Prophase
  • b) Metaphase
  • c) Telophase
  • 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 ?
  • a) 30 minute
  • b) 32 minute
  • c) 59 minute
  • d) 60 minute
Q.8
How many meiotic stage are essential for producing 28 cells from one cell ?
  • a) 7
  • b) 14
  • c) 28
  • d) 64
Q.9
Post mitotic gap phase and synthesis phase of cell cycle are also respectively referred to as :
  • c) G1 and G2
  • a) G2 and S
  • b) G1 and S
  • d) S and G2
Q.10
Approximately how many cells are present in the body of an adult person ?
  • a) 1014
  • b) 1015
  • c) 1018
  • d) 1021
Q.11
The stage of mitosis during which the nucleolus disintegrates and chromosomes appear is knownas
  • a) Prophase
  • b) Metaphase
  • c) Interphase
  • d) Anaphase
Q.12
At which of the following stage4s of cell cycle proteins and microtubules, required for mitosis, are synthesized ?
  • a) Interphase
  • b) G2 phase
  • c) M phase
  • d) G1 phase
Q.13
The chromosomes are distributed in two cells in half thir number is called.
  • a) Cellcycle
  • b) Cytokineis
  • c) Heterotypic division
  • d) Mitosis
Q.14
What is correct ?
  • a) G2 – phase follows mitotic phase.
  • b) DNA – replication occurs in S – phase.
  • c) DNA – content become double during G1 phase.
  • d) Duration of interphase is short as compared to M – phase.
Q.15
During gamete formation, the enzyme recombinase participate during :
  • a) Prophase-I
  • b) Prophase-II
  • c) Mataphase-I
  • 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
   
  • a) (A - i) (B - ii) (C - iii)
  • b) (A - ii) (B - iii) (C - i)
  • c) (A - i) (B - iii) (C - ii)
  • d) (A - iii) (B - ii) (C - i)
Q.17
Which is fundamental property of all living organisms ?
  • a) Respiration
  • b) Germination
  • c) Photosynthesis
  • d) Growth
Q.18
During which of the following phases of mitosis asters appear around the centroles ?
  • a) Prophase
  • b) Metaphase
  • c) Anaphase
  • d) Telophase
Q.19
During interphase.......
  • a) Chromosomes can be observed only as chromatin.
  • b) Replication of DNA occurs.
  • c) Replication of centriole.
  • 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
  • a) 2
  • b) 4
  • c) 8
  • 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.
  • a) (i) and (ii) only
  • b) (i) and (iii) only
  • c) (ii) and (iii) only
  • d) (i), (ii) and (iii)
Q.22
Which of the following statement is true for mitosis ?
  • a) Cytokinesis preceedes karyokinesis
  • b) Karyokinesis preceedes cytokinesis
  • c) Cytokinesis and karyokinesis occur together
  • d) Cytokinesis and karyokinesis are random
Q.23
Which stage of mitosis is indicated by given diagram ?
unit-3_ch-3_que_no-381_img_no1.png
  • a) Metaphase
  • b) Telophase
  • c) Interphase (G1)
  • d) Late Prophase
Q.24
Synthesis of RNA and protein takes place in which phase of the cell cycle ?
  • a) S-phase
  • b) M-phase
  • c) G1-phase
  • 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.
  • a) Both A and R are true and R is correct explanation of A.
  • b) Both A and R are true and R is not correct explanation of A
  • c) A is true and R is wrong
  • d) A is wrong and R is true
Q.26
Which one is a correct pair ?
  • a) M phase - Interphase
  • b) S phase – DNA synthesis
  • c) G1 phase – RNA and DNA synthesis
  • d) G2 phase – Growth phase
Q.27
Significance of meiosis is associated with :
  • a) Growth of the body
  • b) Sexual reproduction
  • c) DNA duplication
  • 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
  • a) (A - iv) (B - iii) (C - ii) (D - v) (E - i)
  • b) (A - ii) (B - iii) (C - iv) (D - r) (E - i)
  • c) (A - v) (B - iv) (C - iii) (D - ii) (E - i)
  • 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 ?
  • a) Size of chromosome – Word is not mentioned
  • b) Number of chromosome – Word is not mentioned
  • c) Width of chromosome – Word in not mentioned
  • d) Length of chromosome – Word is not mentioned
Q.30
Mitosis can occur in
  • a) Diploid cell only
  • b) Haploid and diploid cells both
  • c) Pollen mother cells
  • d) Haploid cell only
0 h : 0 m : 1 s