NEET Biology Cell Cycle and Cell Division Question Bank

done Self Evaluation Test - Cell Cycle and Cell Division Total Questions - 78

• question_answer1)
  A cell is bound to divide, if it has entered:
  A)
  \[{{\operatorname{G}}_{2}}-phase\]                   done clear
  B)
  \[{{\operatorname{G}}_{1}}-phase\] done clear
  C)
  Prophase           done clear
  D)
    S - phase done clear
  View Solution play_arrow

• question_answer2)
  In plants, active mitosis occurs in:
  A)
  Cambium          done clear
  B)
    Leaf tip done clear
  C)
  Root base          done clear
  D)
    Mid vein done clear
  View Solution play_arrow

• question_answer3)
  In meiosis, actual haploidy in terms of DNA comes in:
  A)
  Metaphase-I       done clear
  B)
    Anaphase-II done clear
  C)
  Anaphase-I                    done clear
  D)
  Interkinesis done clear
  View Solution play_arrow

• question_answer4)
  Match the terms (given in column-I) with their explanation (given in column-II) and choose the correct combination from the options given below

  	Column-I (Terms)		Column-II (Explanation)
  A.	Terminalization	I.	Pairing of homolologous
  B.	Synapsis	II.	Point of attachment between homologous chromosomes.
  C.	Chiasmata	III.	Nuclear protein complex that helps in adherence of sister chromatids and then homologous chromosomes.
  D.	Synaptonemal complex	IV.	Shifting of chiasmata outwards complex towards the ends of a bivalent.

  A)
  A - IV; B - I; C - II; D - III done clear
  B)
  A-II; B - III; C - IV; D - I done clear
  C)
  A - II; B - IV; C - III; D - I done clear
  D)
  A - IV; B - I; C - III; D - II done clear
  View Solution play_arrow

• question_answer5)
  If the number of bivalents are 8 in metaphase-I, what shall be the number of chromosomes in daughter cells after meiosis -1 and meiosis - II respectively?
  A)
  8 and 4 done clear
  B)
    4 and 4 done clear
  C)
  8 and 8 done clear
  D)
    16 and 8 done clear
  View Solution play_arrow

• question_answer6)
  Programmed cell death (apoptosis):
  A)
  Occurs in cells that have been deprived of essential nutrients. done clear
  B)
  Occurs only in cells that have damaged DNA. done clear
  C)
  Is a natural process during development? done clear
  D)
  Is signaled by the initiated mitosis. done clear
  View Solution play_arrow

• question_answer7)
  Number of chromosomes in a zygote may be indicated by:
  A)
  4x                                 done clear
  B)
  x done clear
  C)
  3x                                 done clear
  D)
  2x done clear
  View Solution play_arrow

• question_answer8)
  At which stage of cell cycle division the homologous chromosome separate, while sister chromatid remain associated at their centromere:
  A)
  Metaphase-I of meiosis done clear
  B)
  Anaphase-I of meiosis done clear
  C)
  Metaphase of mitosis done clear
  D)
  Anaphase of mitosis done clear
  View Solution play_arrow

• question_answer9)
  Identify the given figures (1, 2 & 3) showing meiotic phases and select the correct option.
  A)
  1-Metaphase 2-Anaphase 3-Telophase done clear
  B)
  1-Metaphase-I 2-Anaphase-I 3-Telophase-I done clear
  C)
  1-Metaphase-II 2-Anaphase-II 3-Telophase-II done clear
  D)
  1-Anaphase-I 2-Metaphase-I 3-Telophase-I done clear
  View Solution play_arrow

• question_answer10)
  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). done clear
  B)
  Pachytene and interphase (just prior to prophase I). done clear
  C)
  Pachytene and S phase (of interphase just prior to prophase I). done clear
  D)
  Zygotene and S phase (of interphase prior to prophase I). done clear
  View Solution play_arrow

• question_answer11)
  Which of the following is correct for the mitotic spindle?
  A)
  It is composed of actin and myosin microfilaments. done clear
  B)
  It is composed of kinetochores at the metaphase plate. done clear
  C)
  It is composed of microtubules, which help to separate the chromosomes to opposite poles of the cell. done clear
  D)
  It originates only at the centrioles in the centrosomes. done clear
  View Solution play_arrow

• question_answer12)
  Which of the following is not a function of mitotic cell division in animals?
  A)
  Asexual reproduction done clear
  B)
  Growth done clear
  C)
  Repair of damaged organs done clear
  D)
  Production of gametes done clear
  View Solution play_arrow

• question_answer13)
  In \[{{\operatorname{G}}_{1}}-phase\] of cell division:
  A)
  RNA and proteins are synthesised for cell growth and subsequent DNA replication. done clear
  B)
  DNA and proteins are synthesised. done clear
  C)
  Formation of RNA and protein continues for spindle formation and cell growth. done clear
  D)
  Cell undergoes duplication. done clear
  View Solution play_arrow

• question_answer14)
  If there are 22 chromosomes in the nucleus of a toad skin cell, a toad egg would contain_____ chromosomes.   
  A)
  22                                 done clear
  B)
  44 done clear
  C)
  11                                 done clear
  D)
  33 done clear
  View Solution play_arrow

• question_answer15)
  Cell division is a normal process in organisms, but sudden and rapid mitosis of cells in an organ may result into:
  A)
  New organ                     done clear
  B)
  Gastrula done clear
  C)
  Zygote               done clear
  D)
  Cancer done clear
  View Solution play_arrow

• question_answer16)
  A plant has number of chromosome groups arranged at equatorial plane of metaphase-I whose 2n = 50; the number of chromosomes visible will be:
  A)
  100                               done clear
  B)
  25 done clear
  C)
  50                                 done clear
  D)
  75 done clear
  View Solution play_arrow

• question_answer17)
  A drug called colchicine is shown to interfere specially with spindle microtubules formation during mitosis. This would result in:
  A)
  dehydration of chromosomes done clear
  B)
  despiralisation of chromosomes done clear
  C)
  arrest of chromosome movements done clear
  D)
  arrest of centrioles movements done clear
  View Solution play_arrow

• question_answer18)
  Chromosomes in salivary gland cells of Drosophila larvae are:
  A)
  Polytene                        done clear
  B)
  Lampbrush type done clear
  C)
  \[\beta -type\]                 done clear
  D)
  Normal type done clear
  View Solution play_arrow

• question_answer19)
  Crossing over during meiosis occurs at four strand stage. This is proved by the observation that:
  A)
  rarely all four gametes resulting from a meiotic division could be recombinants. done clear
  B)
  usually only two gametes resulting from meiotic division could be recombinants. done clear
  C)
  chaismata are seen only at the four strand stage. done clear
  D)
  occasionally none of the four gametes resulting from meiosis could be a recombinant. done clear
  View Solution play_arrow

• question_answer20)
  Meiosis and mitosis differ from each other because in meiosis:
  A)
  The four nuclei formed are not similar to parental ones. done clear
  B)
  Homologous chromosomes pair are exchange parts. done clear
  C)
  Number of chromosomes gets halved. done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer21)
  Non-Sister chromatids:
  A)
  Cross over during prophase I of meiosis. done clear
  B)
  Separate during the first meiotic division. done clear
  C)
  Are produced during S phase between cell divisions. done clear
  D)
  Cross over during prophase II of meiosis. done clear
  View Solution play_arrow

• question_answer22)
  In some organisms, such as certain fungi and algae, cells undergo mitosis repeatedly without subsequently undergoing cytokinesis. What would result from this?                       
  A)
  A decrease in chromosome number. done clear
  B)
  Inability to duplicate DNA. done clear
  C)
  Division of the organism into many cells, most lacking nuclei. done clear
  D)
  Large cells containing many nuclei. done clear
  View Solution play_arrow

• question_answer23)
  In the diagram, a cell undergoing meiosis Which one of the diagrams below shows the next stage in the process?
  A)
                    done clear
  B)
  done clear
  C)
                      done clear
  D)
    done clear
  View Solution play_arrow

• question_answer24)
  Match the column-I and column-II and choose the correct option.                      

  Column-I		Column-I
  A.	Chromosomes in matching pairs are called	I.	Metaphase plate
  B.	In metosis chromosomes is copied and	II.	Homologous
  C.	Precursor for cell wall formation that represents the middle lamella between the wall of two adjacent cells is called	III.	Cell plate
  D.	The plane of alignment of chromosomes at metaphase is called	IV.	Cell divides to give two daughter cells.

  A)
  A - II; B - IV; C - III; D - I done clear
  B)
  A - IV; B - III; C - I; D - II done clear
  C)
  A - I; B - IV; C - II; D - III done clear
  D)
  A - III; B - II; C - IV; D - I done clear
  View Solution play_arrow

• question_answer25)
  At what phase of meiosis there are two cells, each with sister chromatids aligned at the spindle equator?
  A)
  Anaphase II                   done clear
  B)
  Metaphase II done clear
  C)
  Metaphase I                   done clear
  D)
  Anaphase I done clear
  View Solution play_arrow

• question_answer26)
  Who stated that new cells develop from pre-existing cells?
  A)
  Remak               done clear
  B)
  Virchow done clear
  C)
  Prevost and Dumas         done clear
  D)
  Strasburger done clear
  View Solution play_arrow

• question_answer27)
  One chromosome of a homologous pair carries the genes J and K. The other chromosome of the pair carries the genes j and k at corresponding loci. Crossing over results in exchange of chromosome segments and production of gametes with new combinations of genes. A recombinant type gamete resulting from this crossover might contain
  A)
  Genes J and K    done clear
  B)
  Genes j and K done clear
  C)
  Genes J and j     done clear
  D)
  Genes j and k done clear
  View Solution play_arrow

• question_answer28)
  Chiasmata are formed during meiosis:
  A)
  Before metaphase I done clear
  B)
    after metaphase I done clear
  C)
  During prophase II           done clear
  D)
  during metaphase II done clear
  View Solution play_arrow

• question_answer29)
  Replication of centriole occurs during:
  A)
  Early anaphase   done clear
  B)
  Mid metaphase done clear
  C)
  Late metaphase done clear
  D)
  Interphase done clear
  View Solution play_arrow

• question_answer30)
  Recombinant nodules are found during:
  A)
  Anaphase                      done clear
  B)
  Prophase done clear
  C)
  Telophase                      done clear
  D)
  Metaphase done clear
  View Solution play_arrow

• question_answer31)
  Prophase is longer in:
  A)
  Mitosis               done clear
  B)
  Meiosis done clear
  C)
  Equal in both                 done clear
  D)
  Amitosis done clear
  View Solution play_arrow

• question_answer32)
  In telophase of mitosis, the mitotic spindle breaks down and nuclear membranes form. This is essentially the opposite of what happens
  A)
  Prophase                       done clear
  B)
  Interphase done clear
  C)
  Metaphase                     done clear
  D)
  S phase done clear
  View Solution play_arrow

• question_answer33)
  Centromere is required for:
  A)
  Movement of chromosomes towards poles done clear
  B)
  Cytoplasmic cleavage done clear
  C)
  Crossing over done clear
  D)
  Transcription done clear
  View Solution play_arrow

• question_answer34)
  Most cells divide if they receive the proper signal at a checkpoint in the ____ phase of the cell cycle.                
  A)
  M                                 done clear
  B)
  \[{{G}_{1}}\] done clear
  C)
  S                                  done clear
  D)
  \[{{G}_{2}}\] done clear
  View Solution play_arrow

• question_answer35)
  Which of the following does not lead to genetic variability?
  A)
  random fertilization done clear
  B)
  crossing over during meiosis. done clear
  C)
  division of chromosomes during anaphase of mitosis. done clear
  D)
  orientation of chromosomes during metaphase I of meiosis. done clear
  View Solution play_arrow

• question_answer36)
  During pachytene stage of meiosis, the chromosomes appear:
  A)
  Single stranded   done clear
  B)
  Four stranded done clear
  C)
  Six stranded                   done clear
  D)
  Eight stranded done clear
  View Solution play_arrow

• question_answer37)
  Which of the following statements related to stage of the cell cycle are correct?

  (i) It is a quiescent stage.

  (ii) In this phase, cell cycle is stopped.

  (iii) \[{{G}_{0}}\] cells do not grow or proliferate but metabolically active.

  (iv) go cells can divide in response to some stimulus.

  A)
  (i) and (ii)                       done clear
  B)
  (i), (ii) and (iii) done clear
  C)
  Only (i) and (iv)  done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer38)
  Given below is a schematic break-up of the phases / stages of cell cycle with few parts labelled as 1, 2, 3 & 4. Which one of the following is the correct indication of the stage/phase in the cell cycle?
  A)
  3 - Karyokinesis  done clear
  B)
  4 - Synthetic phase done clear
  C)
  1 - Cytokinesis    done clear
  D)
  2 - Metaphase done clear
  View Solution play_arrow

• question_answer39)
  Pick out the correct sequence of two main events in mitosis.
  A)
  Karyokinesis is followed by cytokinesis. done clear
  B)
  Cytokinesis is followed by karyokinesis. done clear
  C)
  Karyokines is followed by separation of the daughter cells. done clear
  D)
  Cytokinesis is followed by separation of the daughter cells. done clear
  View Solution play_arrow

• question_answer40)
  Cell division in blue green algae is similar to that in:
  A)
  Bacteria             done clear
  B)
  Brown algae done clear
  C)
  Green algae                    done clear
  D)
  Higher plants done clear
  View Solution play_arrow

• question_answer41)
  Strasburger is famous for:
  A)
  discovery of cell division done clear
  B)
  proposing the term nucleoplasm done clear
  C)
  proposing the term cytoplasm done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer42)
  When synapsis is complete all along the chromosome, the cell is said to have entered a stage called:
  A)
  Zygotene                        done clear
  B)
  Pachytene done clear
  C)
  Diplotene                       done clear
  D)
  Diakinesis done clear
  View Solution play_arrow

• question_answer43)
  In pachytene stage of meiosis the chromosomes appear:
  A)
  Single stranded   done clear
  B)
  Double stranded done clear
  C)
  Three stranded    done clear
  D)
  Four stranded done clear
  View Solution play_arrow

• question_answer44)
  Choose the event of cell cycle which shows the importance of synapsis and the formation of chiasmata.
  A)
  An increase in the variation of progeny occurs. done clear
  B)
  Reciprocal exchange of chromosomal sections occurs. done clear
  C)
  The DNA on homologous chromosomes mix. done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer45)
  Meiosis which occur at the time of spore formation is called.
  A)
  Zygotic meiosis   done clear
  B)
  Haplontic meiosis done clear
  C)
  Terminal meiosis done clear
  D)
  Intermediate meiosis done clear
  View Solution play_arrow

• question_answer46)
  The cellular structure which disappear during mitosis is:
  A)
  Plasma membrane done clear
  B)
  Nuclear membrane done clear
  C)
  Mitochondria done clear
  D)
  Nuclear membrane and nucleolus done clear
  View Solution play_arrow

• question_answer47)
  Mature nerve cells cannot undergo cell division. These cells are probably considered in:
  A)
  \[{{G}_{2}}-phase\]                   done clear
  B)
  S-phase done clear
  C)
  Mitosis               done clear
  D)
  \[{{G}_{0}}-phase\] done clear
  View Solution play_arrow

• question_answer48)
  After meiosis - I, the two chromatids of a chromosome are:
  A)
  Genetically similar done clear
  B)
  Genetically different done clear
  C)
  There occurs only one chromatid in each chromosome done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer49)
  Fully differentiated cells which do not divide are supposed to be in:
  A)
  \[{{G}_{1}}-phase\]                   done clear
  B)
  \[{{G}_{2}}-phase\] done clear
  C)
  S - phase                       done clear
  D)
  \[{{G}_{0}}-phase\] done clear
  View Solution play_arrow

• question_answer50)
  A zoologist examined an intestine cell from a crayfish and counted 200 chromosomes, each consisting of 2 chromatids, at prophase I of mitosis. What would he expect to see in each of the four cells at telophase II of meiosis if he looked in the crayfish ovary?
  A)
  50 chromosomes, each consisting of 2 chromatids done clear
  B)
  50 chromosomes, each consisting of 1 chromatid done clear
  C)
  100 chromosomes, each consisting of 2 chromatids done clear
  D)
  100 chromosomes, each consisting of 1 chromatid done clear
  View Solution play_arrow

• question_answer51)
  The diagram shows the nuclear contents of a cell. Which one of the following option is correct?

  Number of pairs of homologous chromosomes

  Number of chromatids

  Number of centromeres

   
  A)

  3

  6

  12

    done clear
  B)

  3

  12

  6

    done clear
  C)

  6

  6

  12

    done clear
  D)

  6

  12

  6

    done clear
  View Solution play_arrow

• question_answer52)
  Which of the following pair is correctly matched?
  A)

  Anaphase I

  Homologous chromosomes are separated.

    done clear
  B)

  Metaphase I

  Pairing of maternal and paternal chromosomes.

    done clear
  C)

  Interphase I

  A nuclear envelop encloses each haploid set of chromosomes.

    done clear
  D)

  Prophase I

  Non-homologous chromosomes are separated.

    done clear
  View Solution play_arrow

• question_answer53)
  Meiosis in AaBb will produce gametes:
  A)
  AB, aB, Ab, ab  done clear
  B)
  AB, ab done clear
  C)
  Aa, bb               done clear
  D)
  Aa, Bb done clear
  View Solution play_arrow

• question_answer54)
  Which one of the following list contain the correct order of meiotic events?
  A)
  Separation   of   sister   chromatids, recombination,   formation   of   the synaptonemal complex, separation of homologous chromosomes. done clear
  B)
  Separation of homologous chromosomes, formation of the synaptonemal complex, recombination, separation of sister chromatids. done clear
  C)
  Formation of synaptonemal complex, recombination, separation of sisterchromatids, separation of homologous chromosomes. done clear
  D)
  Formation of the synaptonemal complex, recombination, separation of homologous chromosomes, separation of sister chromatids. done clear
  View Solution play_arrow

• question_answer55)
  ?Bouquet-stage? occur in which sub stages of prophase I:
  A)
  Leptotene          done clear
  B)
    Zygotene done clear
  C)
  Pachytene                      done clear
  D)
  Diplotene done clear
  View Solution play_arrow

• question_answer56)
  Which of the following human cells unlikely to
  A)
  Nerve cell done clear
  B)
  Skin cell done clear
  C)
  Cancer cell                     done clear
  D)
  Cell from an embryo done clear
  View Solution play_arrow

• question_answer57)
  Meiosis takes place in:
  A)
  Apical meristem done clear
  B)
  Intercalary meristem done clear
  C)
  Reproductive cells done clear
  D)
    Vegetative cells done clear
  View Solution play_arrow

• question_answer58)
  Which division maintains genetic similarity?
  A)
  Mitosis               done clear
  B)
  Meiosis done clear
  C)
  Amitosis            done clear
  D)
  Reduction division done clear
  View Solution play_arrow

• question_answer59)
  Match the description given in column-I with their stages given in column-II and identify the correct answer.

  Column-I		Column-II
  A.	Initiation of the assembly of mitotic spindle	I.	Anaphase
  B.	Proteins are synthesized in preparation for mitosis while cell growth continues.	II.	Prophase
  C.	Spindle fibres attach to kinetochores of chromosomes.	III.	Interphase
  D.	Movement of chromatids towards opposite poles	IV.	Metaphase

  A)
  A - II; B - III; C - IV; D - I done clear
  B)
  A - III; B - II; C - I; D - IV done clear
  C)
  A - I; B - III; C - II; D - IV done clear
  D)
  A - IV; B - III; C - I; D - II done clear
  View Solution play_arrow

• question_answer60)
  When dividing cells are observed under a light microscope, chromosomes become visible in:
  A)
  Interphase                      done clear
  B)
  S-phase done clear
  C)
  Prophase                       done clear
  D)
  \[{{G}_{1}}-phase\] done clear
  View Solution play_arrow

• question_answer61)
  Which cell division is found during cleavage?
  A)
  Amitosis            done clear
  B)
  Mitosis done clear
  C)
  Closed mitosis    done clear
  D)
  Meiosis done clear
  View Solution play_arrow

• question_answer62)
  If a grasshopper cell contained 200 units of DNA during\[{{G}_{2}}\], what would be the quantity of DNA in one of the grasshopper cells at the end of telophase II of meiosis?
  A)
  50 units done clear
  B)
  100 units done clear
  C)
  Between 50 and 100 units done clear
  D)
  200 units done clear
  View Solution play_arrow

• question_answer63)
  If the \[\operatorname{n} =16\] in plant cell then what is possible in metaphase - I of meiosis?
  A)
  32 bivalents                   done clear
  B)
  16 tetravalents done clear
  C)
  16 bivalents                   done clear
  D)
  32 bivalents done clear
  View Solution play_arrow

• question_answer64)
  During cell division, sometimes there will be failure of separation of sister chromatids. This event is called.
  A)
  Interference                    done clear
  B)
  complementation done clear
  C)
  coincidence                    done clear
  D)
  non-disjunction done clear
  View Solution play_arrow

• question_answer65)
  During mitosis, after the separation of centromeres, the chromatids move towards opposite poles of the spindle. Name the term used for these chromatids.
  A)
  Daughter chromosomes done clear
  B)
  Kinetochores done clear
  C)
  Half spindles done clear
  D)
  Centrosomes done clear
  View Solution play_arrow

• question_answer66)
  Colchicine prevents the mitosis of cells at which of the following stage?
  A)
  Anaphase                      done clear
  B)
  Metaphase done clear
  C)
  Prophase                       done clear
  D)
  Interphase done clear
  View Solution play_arrow

• question_answer67)
  Number of chromosomes in human karyotype is:
  A)
  48                                 done clear
  B)
  44 done clear
  C)
  46                                 done clear
  D)
  23 done clear
  View Solution play_arrow

• question_answer68)
  Four different steps that occur during meiosis are given in the following list.

  (i). Complete separation of chromatids.

  (ii). Pairing of homologous chromosomes.

  (iii). Lining up of paired chromosomes on equator.

  (iv). Crossing over between chromatids.

  These steps would occur in the order:

  A)
  (ii), (iii), (iv), (i) done clear
  B)
  (iii), (ii), (iv), (i) done clear
  C)
  (ii), (iv), (iii), (i) done clear
  D)
  (iii), (i), (ii), (iv) done clear
  View Solution play_arrow

• question_answer69)
  Each chromosome composed of one chromatid in:
  A)
  Anaphase - I      done clear
  B)
  Anaphase - II done clear
  C)
  Metaphase - I     done clear
  D)
  Metaphase - II done clear
  View Solution play_arrow

• question_answer70)
  In mitosis nucleolus and nuclear membrane disappear at:
  A)
  Interphase                      done clear
  B)
  Prophase done clear
  C)
  Metaphate                     done clear
  D)
  Telophase done clear
  View Solution play_arrow

• question_answer71)
  What is the number of DNA strand in chromosome at G^ stage of cell cycle?
  A)
  One                              done clear
  B)
  Two done clear
  C)
  Four                              done clear
  D)
  Eight done clear
  View Solution play_arrow

• question_answer72)
  Homologous chromosomes show maximum attraction during:
  A)
  Leptotene                      done clear
  B)
  Zygotene done clear
  C)
  Pachytene                      done clear
  D)
  Diplotene done clear
  View Solution play_arrow

• question_answer73)
  Which of the following events not occurs in Anaphase -I?
  A)
  Segregation of homologous chromosomes done clear
  B)
  Contraction in spindle done clear
  C)
  Poleward movement of chromosomes done clear
  D)
  Division of centromere done clear
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• question_answer74)
  Repulsion of homologous chromosomes takes place in:
  A)
  Zygotene                        done clear
  B)
  Leptotene done clear
  C)
  Diakinesis                       done clear
  D)
  Diplotene done clear
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• question_answer75)
  How many reduction divisions are necessary for the formation of 200 grains of wheat?
  A)
  250                               done clear
  B)
  150 done clear
  C)
  200                               done clear
  D)
  360 done clear
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• question_answer76)
  Constancy of the chromosome number in sexually producing generation is brought by the process of:
  A)
  Meiosis              done clear
  B)
  Mitosis done clear
  C)
  Amitosis            done clear
  D)
  None of these done clear
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• question_answer77)
  Phragmoplast is the precursor of:
  A)
  Chloroplast                    done clear
  B)
  Chromoplast done clear
  C)
  Cell plate                       done clear
  D)
  Leucoplast done clear
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• question_answer78)
  In mitosis, duplication of chromosomes occurs during:
  A)
  Interphase                      done clear
  B)
  Prophase done clear
  C)
  Metaphase                     done clear
  D)
  Telophase done clear
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