MCQ Questions Chapter 10 Cell Cycle and Cell Division Class 11 Biology

Please refer to MCQ Questions Chapter 10 Cell Cycle and Cell Division Class 11 Biology with answers provided below. These multiple-choice questions have been developed based on the latest NCERT book for class 11 Biology issued for the current academic year. We have provided MCQ Questions for Class 11 Biology for all chapters on our website. Students should learn the objective based questions for Chapter 10 Cell Cycle and Cell Division in Class 11 Biology provided below to get more marks in exams.

Chapter 10 Cell Cycle and Cell Division MCQ Questions

Please refer to the following Chapter 10 Cell Cycle and Cell Division MCQ Questions Class 11 Biology with solutions for all important topics in the chapter.

MCQ Questions Answers for Chapter 10 Cell Cycle and Cell Division Class 11 Biology

Question- Which of the following occurs only once in life cycle ?
(a) Replication of histone.
(b) Replication of chromosomes.
(c) Mitosis
(d) Meiosis

Question- Crossing over
(a) is important in genetic recombination.
(b) makes a cell become cancerous.
(c) is a key process that occurs during mitosis.
(d) is an important mechanism of chromosome repair.

Question- Mitosis occurs in
(a) haploid individuals.
(b) diploid individuals.
(c) Both (a) and (b)
(d) in bacteria only.

Question- Cell would normally proceed to mitosis without interruption
(a) once it has entered the S phase.
(b) once it has entered the G2 phase.
(c) at any time during cell division activity.
(d) none of the above

Question- The major event that occurs during the anaphase of mitosis, which brings about the equal distribution of chromosomes is
(a) replication of the genetic material.
(b) splitting of the chromatids.
(c) splitting of the centromeres.
(d) condensation of the chromatin.

Question- Spindle fibres of mitotic cells are made up of
(a) tubulin
(b) actin
(c) myosin
(d) collagen

Question- Which of the following will show simple cell division?
(a) Microspore mother cells
(b) Megaspore mother cells
(c) Archesporial cells
(d) All of the above

Question- In Meiosis,
(a) division of nucleus twice but DNA replicates only once.
(b) division of nucleus twice and DNA replicates twice.
(c) division of nucleus once and replication of DNA is also once.
(d) division of nucleus once and DNA – replication is twice.

Question- Many cells function properly and divide mitotically even though they do not have
(a) plasma membrane
(b) cytoskeleton
(c) mitochondria
(d) plastids

Question- Number of bivalents are 8 in prophase I. What is the number of chromosomes during anaphase II ?
(a) 8
(b) 4
(c) 13
(d) 32

Question- During meiosis I, the chromosomes start pairing at
(a) Leptotene
(b) Zygotene
(c) Pachytene
(d) Diplotene

Question- The separation of two chromatids of each chromosome at early anaphase is initiated by
(a) the interaction of centromere with the chromosomal fibres.
(b) the elongation of metaphasic spindle.
(c) the force of repulsion between the divided kinetochores.
(d) All of the above.

Question- ‘X’ ensures the production of ‘Y’ phase in the life cycle of sexually reproducing organisms whereas fertilization restores the ‘Z’ phase. Identify X, Y and Z.
(a) X- Mitosis, Y – haploid, Z – haploid
(b) X- Mitosis, Y – diploid, Z – diploid
(c) X- Meiosis, Y – haploid, Z – diploid
(d) X- Meiosis, Y – diploid, Z – diploid

Question- Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres.
(a) Metaphase I
(b) Metaphase II
(c) Anaphase I
(d) Anaphase II

Question- Mitosis is the process by which eukaryotic cells
(a) expose the genes for protein synthesis.
(b) become specialized in structure and function.
(c) multiply.
(d) grow.

Question- At which stage, the homologous chromosomes separate due to repulsion, but are yet held by chiasmata ?
(a) Zygotene
(b) Pachytene
(c) Diplotene
(d) Diakinesis

Question- Which of the following is the result when karyokinesis is not followed by cytokinesis ?
(a) Synaptonemal complex
(b) Syncytium
(c) Recombination nodules
(d) Terminalization

Question- It is important that the centromere not divide till the end of metaphase because it
(a) is connected with nuclear membrane.
(b) contains genes that control prophase.
(c) holds the replicated DNA molecules together.
(d) produces spindle fibres.

Question- How many mitotic divisions are needed for a single cell to make 128 cells?
(a) 7
(b) 14
(c) 28
(d) 64

Question- In meiosis, the daughter cells differ from parent cell as well as amongst themselves due to
(a) segregation, independent assortment and crossing over.
(b) segregation and crossing over.
(c) independent assortment and crossing over.
(d) segregation and independent assortment.

Question- Which of the following carry the same genetic information?
(a) Sister chromatids
(b) X and Y chromosomes
(c) All autosomes
(d) Homologous chromosomes

Question-The stage of meiosis where centromere separate
(a) metaphase I
(b) metaphase II
(c) anaphase I
(d) anaphase II

Question- “G0” state of cells in eukaryotic cell cycle denotes
(a) check point before entering the next phase.
(b) pausing in the middle of a cycle to cope with a temporary delay.
(c) death of a cell.
(d) exit of cells from cell cycle.

Question-The correct sequence in cell cycle is 
(a) S – G1 – G2 – M
(b) S – M – G1 – G2
(c) G1 – S – G2 – M
(d) M1 – G1 – G2 – S

Question- In animal cells, cytokinesis involves
(a) the separation of sister chromatids.
(b) the contraction of the contractile ring of microfilament.
(c) depolymerization of kinetochore microtubules.
(d) a protein kinase that phosphorylates other enzymes.

Question- Which of the following does not lead to genetic variability?
(a) Random fertilization.
(b) Crossing over during meiosis.
(c) Division of chromosomes during anaphase of mitosis.
(d) Orientation of chromosomes during metaphase I of meiosis.

Question- Colchicine prevents the mitosis of cells at which of the following stage?
(a) Anaphase
(b) Metaphase
(c) Prophase
(d) Interphase

Question- In telophase of mitosis, the mitotic spindle breaks down and nuclear membranes form. This is essentially the opposite of what happens in
(a) prophase
(b) interphase
(c) metaphase
(d) S phase

Question- When synapsis is complete all along the chromosome, the cell is said to have entered a stage called
(a) zygotene
(b) pachytene
(c) diplotene
(d) diakinesis

Question- A triploid nucleus cannot undergo meiosis because
(a) crossing over does not occur.
(b) karyokinesis can not occur.
(c) chromosomes do not replicate.
(d) not all of the chromosomes can form homologous pairs.

Question- During which stages (or prophase I substages) of meiosis do you expect to find the bivalents and DNA replication respectively? 
(a) Pachytene and interphase (between two meiotic divisions)
(b) Pachytene and interphase (just prior to prophase I)
(c) Pachytene and S phase (of interphase just prior to prophase I)
(d) Zygotene and S phase (of interphase prior to prophase I)

Question- Which of the following is responsible for the formation of the new cell wall and also represents the middle lamella between the walls of two adjacent cells?
(a) Cell plate
(b) Cell inclusion
(c) Cell membrane
(d) None of the above

Question- Four daughter cells formed after meiosis are
(a) genetically similar
(b) genetically different
(c) anucleate
(d) multinucleate

Question- The following events occur during the process of meiosis. Arrange the following events of meiosis in the correct sequence.
I. Terminalization
II. Crossing over
III. Synapsis
IV. Disjunction of genomes
(a) I, II, III, IV
(b) II, III, IV, I
(c) III, II, I, IV
(d) IV, I, II, III

Question- Match the description (given in column I) with correct stage of prophase I (given column II) and choose the correct option. 
Column I                                   Column II
A. Chromosomes are                     I. Pachytene
moved to spindle
equator
B. Centromere splits and              II. Zygotene
chromatids move apart
C. Pairing between                       III. Anaphase
homologous
chromosomes takes place
D. Crossing between                     IV. Metaphase
homologous
chromosomes
(a) A – I; B – II; C – III; D – IV
(b) A – II; B – III; C – IV; D – I
(c) A – IV; B – III; C – II; D – I
(d) A – III; B – I; C – IV; D – II

Question- Which one of the following precedes reformation of the nuclear envelope during Mphase of the cell cycle? 
(a) Decondensation from chromosomes and reassembly of the nuclear lamina.
(b) Transcription from chromosomes and reassembly of the nuclear lamina.
(c) Formation of the contractile ring and formation of the phragmoplast.
(d) Formation of the contractile ring and transcription from chromosomes.

Question. Which one is correct for G₀ stage ?
I. It is a quiescent stage.
II. In this phase cell cycle is stopped
III. G0 cells do not grow or proliferate but metabolically active
IV. G0 cells can divide in response to some stimulus
(a) All are correct
(b) I,II,III are correct
(c) I,II are correct
(d) Only I and IV are correct

Question. Interval between mitosis and initiation of DNA replication is called :-
(a) G₂ – Phase
(b) G₁ – phase
(c) Karyokinesis
(d) S – phase

Question. Diploid cell in human, where cell division does not occur :-
(A) Heart cell
(B) Muscle cell
(C) Nerve cell
(a) Only C
(b) B and C
(c) A and C
(d) A, B and C

Question. Label the structure indicated by (i), (ii), (iii) and (iv)-

(a) (i)-Chromatid, (ii)-Centriole,
(iii)-Centromere, (iv)-Chromosome
(b) (i)-Chromosome, (ii)-Centriole,
(iii)-Centromere, (iv)-Chromatid
(c) (i)-Chromatid, (ii)-Centromere,
(iii)-Centriole, (iv)-Chromosome
(d) (i)-Chromosome, (ii)-Centromere,
(iii) Centriole, (iv)-Chromatid

Question. In a diploid cell before S-phase quantity of DNA is 20 pico gram (pg) after meiosis I what will be the quantity of DNA in each daughter cell ?
(a) 10 pg
(b) 20 pg
(c) 5 pg
(d) 40 pg

Question. Number of chromosome pairs at equator in metaphase-I of a diploid plant cell (n = 25 chromosomes) shall be-
(a) 50
(b) 100
(c) 75
(d) 25

Question. A cell has 46 chromosomes at each pole in mitotic telophase. In this division the number of chromatids at the metaphase was :-
(a) 23
(b) 46
(c) 92
(d) 69

Question. Synapsis occurs between :-
(a) Two homologous chromosomes
(b) A male and a female gamete
(c) mRNA and ribosomes
(d) Spindle fibres and centromere

Question. Mark incorrect statements :-
(A) Meiosis involves only a single cycle of DNA replication
(B) Four haploid cells are formed at the end of meiosis–I
(C) Meiosis occurs in diploid cells
(D) In yeast, cell cycle takes about 90 minutes.
(a) A and B
(b) A and C
(c) Only B
(d) All are correct

Question. During mitosis ER and nucleolus begin to disappear at :
(a) Early prophase
(b) Late prophase
(c) Early metaphase
(d) Late metaphase

Question. The following graphs (A and B) depicts changes in DNA Content during cell cycle. Identify the cell division from A and B :

(a) A → Meiosis–II, B → Meiosis–I
(b) A → Mitosis, B → Meiosis–I
(c) A → Meiosis–I, B → Mitosis
(d) A → Mitosis, B → Meiosis

Question. Given below is a schematic break-up of the phases/stages of cell cycle :-

Which one of the following is the correct indication of the stage/phase in the cell cycle ?
(a) A – Cytokinesis
(b) B – Metaphase
(c) C – Karyokinesis
(d) D – Synthetic phase

Question. The stage during which separation of the paired homologous chromosomes begins is
(a) Pachytene
(b) Diplotene
(c) Diakinesis
(d) Zygotene

Question. How many meiotic divisions are required during the formation of 500 zygotes, if in males one meiotic division resutls in formation of four male gametes and in females one meiotic division results in formation of one female gamete?
(a) 625
(b) 500
(c) 1000
(d) 2500

Question. Number of chromatids in each chromosome at anaphase is-
(a) One in mitosis, one in meiosis-I and two in meiosis-I
(b) One in mitosis, two in meiosis-I and one in meiosis-II
(c) Two in mitosis, one in meiosis-I and two in meiosis-II
(d) Two in mitosis, two in meiosis-I and two in meiosis-II

Question. Which stages of cell division do the following figures A and B represent respectively ?
(a) Prophase – Anaphase
(b) Metaphase – Telophase
(c) Telophase – Metaphase
(d) Late Anaphase – Prophase

Question. A mouse cell is treated with a chemical that interferes with the activity of microfilaments. Which of the following will probably be affected the most?
(a) Formation of spindle fibres
(b) Division of cytoplasm
(c) Chromosome duplication
(d) Pairing of homologous chromosomes

Question. In which of the following stages of mitosis, chromosomes are most condensed ?
(a) Stage between the stage of cell plate formation and stage of DNA replication 
(b) Stage between the stage of centrioles separation and stage of splitting of centromere
(c) Stage between the stage of DNA replication and stage of initiation of condensation of chromatin
(d) Stage between the stage of metaphase plate formation and stage of decondensation of chromosomes

Question. If the cell had diploid or 2n number of chromosomes at G1, after S phase the number of chromosomes in the cell is ?
(a) 2 n
(b) 4 n
(c) n
(d) 3n

Question. During meiosis how many cycles of nucleus division, DNA replication and division of centromere take place respectively :-
(a) Three, Two, One
(b) One, Two, Two
(c) Two, Two, One
(d) Two, One, One

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