Important MCQ On Cell Cycle and Cell Division Based on NCERT Textbook 10 Chapter.

      QUESTION based on NCERT textbook.

Q1) In meiosis, the daughter cells differ from parent cell as well as amongst themselves due to ..... [ AFMC 2009 ] 

 a) Segregation, independent assortment and crossing over

 b) Segregation and crossing over  

 c) Independent assortment and crossing over

 d) Segregation and independent assortment.

Q2) Histone protein synthesis occurs during ... ... [ CBSE 2005 ] 

 a) G1-phase  

 b) G2 -phase  

 c) S-phase  

 d) Prophase

Q3) Select the incorrect match [ NEET 2018] 

 a) Lampbrush – Diplotene bivalents chromosomes

 b) Allosomes – Sex chromosomes  

 c) Submetacentric – L-shaped chromososmes chromosomes

 d) Polytene – Oocytes of amphibians chromosomes

Q4) At which stage of meiosis does the genetic constitution of gametes is finally decided?

(A) Metaphase - I

(B) Anaphase - II

(C) Metaphase - II

(D) Anaphase - I.

Q5) Satellite DNA is important because it : [ ReAIPMT 2015] 

 a) Codes for enzymes needed for DNA replication

 b) Codes for proteins needed in cell cycle  

 c) Shows high degree of polymorphism in population and also the same degree of polymorphism in an individual, which is heritable from parents to children

 d) Does not code for proteins and is same in all members of the population

Q6) Which of the following options gives the correct sequence of events during mitosis? ….[NEET- 2017] 

 a) Condensation → nuclear membrane disassembly → crossing over → segregation → telophase

 b) Condensation → nuclear membrane disassembly → arrangement at equator →centromere division → segregation → telophase

 c) Condensation → crossing over → nuclear membrane disassembly → segregation → telophase

 d) Condensation → arrangement at equator → centromere division → segregation →telophase

Q7) During anaphase - I of meiosis

(A) Homologous chromosomes separate

(B) Non-homologous chromosomes separate

(C) Sister chromatids chromosomes separate

(D) Non-sister chromatids chromosomes separate.

Q8) Recombination between homologous chromosomes is completed by the end of ... ... [ CET Chd. 2009 ] 

 a) Pachytene  

 b) Leptotene  

 c) Diplotene  

 d) Zygotene

Q9) Paring of homologous chromosomes in zygotene is ... ... [ BHU 2008 ] 

 a) Synapse  

 b) Synapsis

 c) Crossing over

 d) Terminalisation

10) A bivalent of meiosis-1 consists of

(A) Two chromatids and one centromere

(B) Two chromatids and two centromeres

(C) Four chromatids and two centromeres

(D) Four chromatids and four centromeres.

11) The stage of cell cycle when cell decides to undergone differentiation is ... .... [ JIPMER 2006] 

 a) G0  

 b) G1  

 c) G3  

 d) G4

12) What is the requirement of equational division in meiosis ... ... [ JKCMEE 2004] 

 a) Formation of four gametes  

 b) Segregation of replicated chromosomes

 c) Equal distribution of haploid chromosomes

 d) Equal distribution of genes on chromosomes

13) During meiosis I, the number of chromosomes is ... ... [ CPMT 1992 ] 

 a) Doubled  

 b) Tripled  

 c) Halved

 d) Quadrupled

14) Which of the events listed below is not observed during mitosis?

(A) Chromatin condensation

(B) Movement of centrioles to opposite poles

(C) Appearance of chromosomes with two chromatids joined together at the centromere

(D) Crossing over.

15) During the meiotic division the [BHU 2005]

A) Homologous chromosomes are separated

B) The linkage is disturbed

C) The homologous chromosomes do not segregate

D) All of the above

16) How many mitotic divisions are needed for a single cell to make 128 cells [CBSE PMT 1997; AFMC 1999])

A) 7

B) 14

C) 28

D) 32

17) In which of the following stage, the chromosome is thin and like long thread [AFMC 1997]

A) Leptotene

B) Zygotene

C) Pachytene

D) Diakinesis

18) Identify the wrong statement about meiosis

(A) Pairing of homologous chromosomes

(B) Four haploid cells are formed

(C) At the end of meiosis number of chromosomes are reduced to half

(D) Two cycles of DNA replication occur.

19) Crossing over occurs during ... .... [ JIPMER 2002 ] 

 a) Leptotene  

 b) Pachytene  

 c) Diplotene  

 d) Diakinesis

20) Longest phase of meiosis is ... ... [ BHU 2008 ] 

 a) Prophase I  

 b) Prophase II  

 c) Anaphase I  

 d) Metaphase II

21) A stage in mitosis that begins in mid-anaphase and completed with telophase is ... ... [ AFMC 2012 ] 

 a) Crossing over  

 b) Karyokinesis  

 c) Cytokinesis  

 d) Interkinesis

22) Beads on string of a are seen in b  which condense to form chromosomes in c stage of cell division ... ..[ AIIMS 2012 ] 

 a) aChromonema b Chromatin c Metaphase

 b) aChromatin b Chromatid c Metaphase  

 c) aChromonema b Chromosome c Anaphase

 d) aChromonema b Chromatid c Anaphase

23) Cells which are not dividing are likely to be at

(A) G1

(B) G2

(C) G0

(D) S phase.

24) Offsets are produced by ..[ NEET 2018] 

 a) Meiotic divisions  

 b) Mitotic divisions  

 c) Parthenocarpy  

 d) Parthenogenesis

25) In meiosis disjunction of chromosomes occurs during ... ... [ EAMCET 2001 ] 

 a) Metaphase I  

 b) Anaphase I  

 c) Metaphase II  

 d) Anaphase II

Answers are below :-

 1) A 

 2) C

 3) D

 4) D

 5) C

 6) B

 7) A

 8) A

 9) B

10) C

11) A

12) B

13) C

14) D

15) A

16) A

17) A

18) D

19) B

20) A

21) C

22) A

23) C

24) B

25) B

Keep learning the concepts and solving the MCQ.  The more you solve more will   chances of success in NEET. 

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