Cell Cycle and Cell Division MCQ Class 11 Biology
Please refer to Chapter 10 Cell Cycle and Cell Division MCQ Class 11 Biology with answers below. These multiple-choice questions have been prepared based on the latest NCERT book for Class 11 Biology. Students should refer to MCQ Questions for Class 11 Biology with Answers to score more marks in Grade 11 Biology exams. Students should read the chapter Cell Cycle and Cell Division and then attempt the following objective questions.
MCQ Questions Class 11 Biology Chapter 10 Cell Cycle and Cell Division
The Cell Cycle and Cell Division MCQ Class 11 Biology provided below covers all important topics given in this chapter. These MCQs will help you to properly prepare for exams.
Question. Golgi complex and endoplasmic reticulum cannot be seen during
(a) late telophase
(b) late prophase
(c) early anaphase
(d) late metaphase
Question. During S phase
(a) The DNA per cell doubles
(b) The protein per cell becomes half
(c) The chromosomes also get double
(d) The content of a diploid cell increases from C to 2C
Question. To make 350 cells, how many times the DNA duplication will occur?
Question. The S phase marks the period during which replication of DNA takes place. It is during this time that the content of DNA doubles, from
(a) 2C to 4C
(b) 4C to 2C
(c) (1n or 2n)
(d) (2n or 1n)
Question. During mitosis ER and nucleolus begin to disappear at.
(a) late prophase
(b) early metaphase
(c) late metaphase
(d) early prophase
Question. Meiosis I:
(a) is always followed by interphase
(b) is not followed by any period of rest
(c) is followed by a period of interkinesis
(d) is sometimes followed by interphase
Question. Amount of DNA and Number of chromosomes in G2 phase of cell cycle would be
(a) Double and equal to that of in G1 phase respectively
(b) Half and equal to that of in G1 phase respectively
(c) Equal and half to that of in G1 phase respectively
(d) Double and double to that of in G1 phase respectively
Question. Exchange of genetic material between non-sister chromatids of homologous chromosomes in pachytene stage is facilitated by
Question. At what phase of meiosis are homologous chromosomes separated ?
(a) Prophase l
(b) Prophase ll
(c) Anaphase l
(d) Anaphase ll
Question. When cell has stalled DNA replication fork, which checkpoint should be predominantly activated?
(d) Both G2/M and M
Question. Spindle fibres attach on to
(a) Kinetochore of the chromosome
(b) centromere of the chromosome
(c) Kinetosome of the chromosome
(d) telomere of the chormosome
Question. The enzyme recombinase is required at which stage of meiosis?
Question. The DNA content of individual cells and the number of cells in each phase of a “cell cycle” can be determined, using flow cytometry. Which of the following combinations of “phase of a cell cycle and its corresponding DNA content” can be considered normal?
A. Diploid cells found in the Go or G1 phase.
B. Cells with twice the normal DNA content in the early M phase.
C. Cells with intermediate amounts of DNA in the S Phase.
D. Cells with twice the normal DNA content in the G2 phase.
(a) A and B
(b) B and C
(c) C and D
(d) All are correct
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. Select the correct option with respect to mitosis.
(a) Chromatids start moving towards opposite poles in telophase
(b) Golgi complex and endoplasmic reticulum are still visible at the end of prophase
(c) Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase
(d) Chromatids separate but remains in the centre of the cell in anaphase
Question. Microtubule depolymerizing drug such as colchicine is expected to
(a) inhibit spindle formation during mitosis
(b) inhibit cytokinesis
(c) allow mitosis beyond metaphase
(d) induce formation of multiple contractile
Question. The exchange of segments of two non-homologous pair of chromosomes is termed as
(a) Crossing over
Question. Calcium dependent Kinases can control
(a) cell cycle activities
(b) DNA replication
(c) Cell surface receptors
(d) membrane structure
Question. The total DNA content of each daughter cell is reduced during meiosis because:
(a) Chromosomes do not replicate during the interphase preceding meiosis I
(b) Chromosomes do not replicate between meiosis I and II
(c) Half of the chromosomes from each gamete are lost during fertilization
(d) Chromosome arms are lost during crossing over
Question. Which event is not associated with prophase I?
Question. Barr body is found in the cytoplasm during
(a) interphase in cell of female mammal.
(b) interphase in cell of male mammal.
(c) prophase in cell of female mammal.
(d) prophase in cell of male mammal.
Question. Which of the following is not a characteristic of meiosis?
(a) It involves two stages of DNA replication one before meiosis-I and another before meiosis-II
(b) It involves recombination and crossing over
(c) Sister chromatids separate during anaphase- II
(d) Nuclear membrane disappears during prophase.
Question. Select the wrong statement:
(a) Cell growth is a continuous process
(b) Cytoplasmic content increase occurs only during one specific stage in the cell cycle
(c) DNA synthesis occurs only during one specific phase of cell cycle
(d) None of these
Question. The members of a homologous pair of chromosomes:
(a) Are identical in size and appearance
(b) Contain identical genetic information
(c) Separate to opposite poles of the cell during mitosis
(d) Are found only in haploid cells
Question. Select the correct statement
(a) Chromosoms decondense and lose their individuality during anaphase
(b) Spindle fibres attach to kinetochores of chromosomes during early prophase
(c) Centriole begins to move towards opposite poles of the cell during metaphase
(d) DNA is replicated during S-phase of cell cycle
Question. Select the odd one out with respect to mitosis
(a) It helps the organisms in both sexual and asexual reproduction
(b) It is called equational division
(c) It takes place only in diploid cells of plants
(d) It helps in cell repair
Question. In human cells chromosomes are:
(a) Always condensed during the entire cell cycle
(b) Different in different tissues
(c) Of the same size and shape
(d) Visible only during mitosis and meiosis
Question. Cytokinesis in animal cell takes place by _______; in _______ direction while in plant cell by _______; in _______ direction:
(a) Furrowing, centrifugal, cell plate, centripetal
(b) Furrowing, centripetal, cell plate, Centrifugal
(c) Cell plate, centrifugal, furrowing, centripetal
(d) Cell plate, centripetal, furrowing, centrifugal
Question. Consider the given two statements:
l. During G1 phase the cell is metabolically active and continuously grows but does not replicate its DNA.
ll. During G2 phase, proteins are synthesized in preparation for mitosis while cell growth continues.
Of the two statements:
(a) Only l is correct
(b) Only ll is correct
(c) Both l and ll are correct
(d) Both l and ll are incorrect
Question. In oocyte of some vertebrates, the stage of meiosis I that can last for months or years would be:
Question. Select the mis-matched pair
(a) Leptotene – Compaction of chromosomes continued
(b) Zygotene – Appearance of recombination nodules
(c) Diplotene – beginning of dissolution of synaptonemal complex
(d) Diakinesis – Completgeterminalisation of chiasmata
Question. A typical eukaryotic cell cycle is illustrated by human cells in culture. These cells divide once in approximately every
(a) 24 hours
(b) 90 minutes
(c) 20 minutes
(d) 9 hours
Question. If a yeast cell is grown for 540 minutes in a Cell culture, how many cycles of division can be expected in that time?
Question. f a person forgets to take the reading of his cell culture data now he needs to conclude among the two plates A( with 16 cells) and B (with 128 cells). If these plates A and B happen to be of human cells, then plate A is of
(a) 96 hrs
(b) 105 hrs
(c) 72 hrs
(d) Both A and B
Question. Meiosis has evolutionary significance because it results in
(a) genetically similar daughters
(b) four daughter cells
(c) eggs and sperms
Question. Synapsis occurs between
(a) a male and a female gamete
(b) mRNA and ribosomes
(c) spindle fibres and centromere
(d) two homologous chromosomes
Question. A cell examined during prophase of cell cycle contained 100 units of DNA and 50 chromosomes. What would be the number of DNA and chromsomes in anaphase of this cell cycle?
(a) 200 DNA & 100 chromosomes
(b) 100 DNA & 50 chromosomes
(c) 100 DNA & 100 chromosomes
(d) 50 DNA & 25 chromosomes
Question. At anaphase-II, sister chromatids move towards opposite poles of the cell by :
(a) Contraction in spindle fibre attached to kinetochores
(b) Shortening of microtubules attached to kinetochores
(c) Lengthening of microtubules attached to kinetochores
(d) Relaxation in spindle fibre attached to kinetochores
Question. During telophase :
(a) Nuclear membrane is formed
(b) Nucleolus appears
(c) Astral rays disappear
(d) All the above
Question. Crossing over takes place in :
Question. Synaptonemal complex first appear :
Question. Many cells function properly and divide mitotically even through they do not have :
(a) Plasma membrane
Question. Which one of the following is correctly matched?
(a) Leptotene – formation of bivalents
(b) Diplotene – chiasmata appear
(c) Pachytene – chiasmata terminalisation
(d) Zygotene – formation of bouquet
Question. Preparation phase of mitosis is :
Question. At which stage of the cell cycle are histone proteins synthesized in a eukaryotic cell ?
(a) During telophase
(b) During Sphase
(c) During G2stage of prophase
(d) During entire prophase
Question. Meiosis involves-
(a) one nuclear divisions and one chromosome division
(b) two nuclear divisions and one chromosome division
(c) one nuclear division and two chromosome divisions
(d) two nuclear divisions and two chromosome divisions
Question. Cell Cycle of an ordinary animal cell –
(a) 2n Mitosis ¾¾¾®n Fertilization ¾¾¾¾®2n Meiosis ¾¾¾®2n
(b) n Meiosis ¾¾¾®2n Fertilization ¾¾¾¾®2n Mitosis ¾¾¾®n
(c) 2n Meiosis ¾¾¾®n Fertilization ¾¾¾¾®2n Mitosis ¾¾¾®2n
(d) 2n Fertilization ¾¾¾¾®(n) Mitosis ¾¾¾®2n Meiosis ¾¾¾®n
Question. Prophase which follows the S and G2 phases of interphase, is the first stage of :
(d) G1 phase
Question. The two asters together with spindle fibres form:
(a) Mitotic apparatus
(c) Astral fibres
Question. The two chromatids of a metaphase chromosome represent :-
(a) replicated DNA to be separated at anaphase
(b) non homologous chromosomes joined at the centromere
(c) pair of homologous chromosomes
(d) maternal and paternal chromosomes joined at the centromere
Question. Centromere is required for
(a) Movement of chromosomes towards poles
(b) Cytoplasmic cleavage
(c) Crossing over
Question. In prophase centrosome which had undergone duplication during interphase, begins to move towards :
(a) Same poles of the cell
(b) Opposite poles of the cell
(c) One towards centre while another towards pole
(d) Both towards centre
Question. Synaptonemal complex is a nucleoprotein structure. It is visible or found from-
(a) zygotene to pachytene
(b) leptotene to diplotene
(c) zygotene to metaphase
(d) pachytene to diplotene
Question. During prophase each centrosome radiates out microtubules called :
(a) Mitotic apparatus
(b) Spindle apparatus
(d) Spindle fibres
Question. In which stage of meiosis, chromosomes are thin, long, thread like?
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