MCQ 11 MarkHistone proteins are synthesized duringAG1 phase✓S – phaseCG2 – phaseDInterphaseAnswerCorrect option: B. S – phaseS – phaseView full question & answer→
MCQ 21 MarkFind incorrect statement.ACondensation of chromatin material occurs in prophase.BDaughter chromatids are formed in anaphase.✓Daughter nuclei are formed at metaphase.DNuclear membrane reappears in telophase.AnswerCorrect option: C. Daughter nuclei are formed at metaphase.Daughter nuclei are formed at metaphase.View full question & answer→
MCQ 31 MarkIn which of the following phase of mitosis chromosomes are arranged at equatorial plane?AProphase✓MetaphaseCAnaphaseDTelophaseAnswerCorrect option: B. MetaphaseMetaphaseView full question & answer→
MCQ 41 MarkHow many chromatids are present in anaphase – I of meiosis – I of a diploid cell having 20 chromosomes?A4B6C20✓40AnswerCorrect option: D. 4040View full question & answer→
MCQ 51 MarkHow many meiotic divisions are necessary for formation of 80 sperms?A80B40✓20D10AnswerCorrect option: C. 2020View full question & answer→
MCQ 61 MarkChromosome number of a cell is almost doubled up during _______ .AG1 – phase✓S – phaseCG2-phaseDG0-phaseAnswerCorrect option: B. S – phaseS – phaseView full question & answer→
MCQ 71 MarkSpindle apparatus is formed during which stage of mitosis?✓ProphaseBMetaphaseCAnaphaseDTelophaseAnswerCorrect option: A. ProphaseProphaseView full question & answer→
MCQ 81 MarkSynapsis is pairing of ………………. .Aany two chromosomesBnon – homologous chromosomesCsister chromatids✓homologous chromosomesAnswerCorrect option: D. homologous chromosomeshomologous chromosomesView full question & answer→
MCQ 91 MarkThe connecting link between Meiosis – I and Meiosis – II is …………Ainterphase – IBinterphase – II✓interkinesis – IIIDanaphase – IVAnswerCorrect option: C. interkinesis – IIIinterkinesis – IIIView full question & answer→
MCQ 101 MarkThe CORRECT sequence of phases of cell cycle is:AS → G1 → G2 → M✓G1 → S → G2 → MCM → G1 → G2 → SDG1 → G2 → S → MAnswerCorrect option: B. G1 → S → G2 → M(B) G1 → S → G2 → MView full question & answer→
MCQ 111 MarkArrange the following events of meiosis in correct sequence. (a) Crossing over(b) Synapsis(c) Terminalisation of chiasmata(d) Disappearance of nucleolusA(b), (c), (d), (a)B(b), (a), (d), (c)✓(b),(a), (c), (d)D(a), (b), (c), (d)AnswerCorrect option: C. (b),(a), (c), (d)(C) (b),(a), (c), (d)View full question & answer→
MCQ 121 MarkWhich of the following is not a characteristic feature during mitosis in somatic cells?AChromosome movementBSynapsisCSpindle fibresDDisappearance of nucleolusView full question & answer→
MCQ 131 MarkWhich of the following options gives the correct sequence of events during mitosis?ACondensation → nuclear membrane disassembly → crossing over – segregation → telophase✓Condensation → nuclear membrane disassembly → arrangement at equator → centromere division → segregation → telophaseCCondensation → crossing over → nuclear membrane disassembly → segregation → telophaseDCondensation → arrangement at equator → centromere division → segregation → telophaseAnswerCorrect option: B. Condensation → nuclear membrane disassembly → arrangement at equator → centromere division → segregation → telophase(B) Condensation → nuclear membrane disassembly → arrangement at equator → centromere division → segregation → telophaseView full question & answer→
MCQ 141 MarkThe stage during which separation of the paired homologous chromosomes begins isADiakinesisBDiploteneCPachyteneDZygoteneView full question & answer→
MCQ 151 MarkCells in $G_0$ phaseAsuspend the cell cycleBterminate the cell cycleCexit the cell cycleDenter the cell cycleView full question & answer→
MCQ 161 MarkAfter meiosis I, the resultant daughter cells haveAfour times the amount of DNA in comparison to haploid gamete.Bsame amount of DNA as in the parent cell in S phase.✓twice the amount of DNA in comparison to haploid gamete.Dsame amount of DNA in comparison to haploid gamete.AnswerCorrect option: C. twice the amount of DNA in comparison to haploid gamete.(C) twice the amount of DNA in comparison to haploid gamete.View full question & answer→
MCQ 171 MarkCrossing over takes place between which chromatids and in which stage of the cell cycle?ANon-sister chromatids of nonhomologous chromosomes at Pachytene stage of prophase IBNon-sister chromatids of nonhomologous chromosomes at Zygotene stage of prophase ICNon-sister chromatids of homologous chromosomes at Pachytene stage of prophase IDNon-sister chromatids of homologous chromosomes at Zygotene stage of prophase IView full question & answer→
MCQ 181 MarkHow many haploid daughter cells are produced at the end of meiosis-II?A2✓4C6D8AnswerCorrect option: B. 4(B) 4View full question & answer→
MCQ 191 MarkNumber of cells undergoing meiotic divisions to produce 124 microspores in angiosperm isA62✓31C124D8AnswerCorrect option: B. 31(B) 31View full question & answer→
MCQ 201 MarkHow many divisions are required to produce 128 gametes?A64B16✓32D12AnswerCorrect option: C. 32(C) 32View full question & answer→
MCQ 211 MarkMitosis differs from meiosis in not havingALong prophaseBduplication of DNA✓Synapsis and crossing overDinterphaseAnswerCorrect option: C. Synapsis and crossing over(C) Synapsis and crossing overView full question & answer→
MCQ 221 MarkIn which phase of meiosis are homologous chromosomes separated?✓Anaphase IBProphase IICAnaphase IIDProphase IAnswerCorrect option: A. Anaphase I(A) Anaphase IView full question & answer→
MCQ 231 MarkThe correct sequence of stages in prophase I of meiosis isALeptotene, Pachytene, Zygotene, Diakinesis, DiploteneBZygotene, Leptotene, Pachytene, Diakinesis, DiploteneCLeptotene, Zygotene, Pachytene, Diplotene, DiakinesisDDiplotene, Diakinesis, Pachytene, Zygotene, LeptoteneView full question & answer→
MCQ 241 MarkWhich of the following events take place during diplotene stage of prophase I of meiosis?ACompaction of chromosomesBFormation of synapsisCProcess of crossing overDRepulsion of homologuesView full question & answer→
MCQ 251 MarkPoints at which crossing over has taken place between homologous chromosomes are calledAchiasmataBsynaptonemal complexesCcentromeresDtelomereView full question & answer→
MCQ 261 MarkCrossing over of chromosomes during meiosis leads toAmutationBsex determinationCnew gene combinationDloss of chromosomesView full question & answer→
MCQ 271 MarkCrossing over takes place betweenAsister chromatidsBnon-homologous chromosomesCnon-sister chromatids of homologuesDany two chromatidsView full question & answer→
MCQ 281 MarkCrossing over takes place in the ________ stage.AleptoteneBzygotene✓pachyteneDdiploteneAnswerCorrect option: C. pachytene(C) pachyteneView full question & answer→
MCQ 291 MarkFormation of Synaptonemal complex during meiosis occurs atALeptoteneBZygoteneCDiploteneDPachyteneView full question & answer→
MCQ 301 MarkMeiosis is aAhomotypic divisionBequatorial divisionCreductional divisionDnone of the aboveView full question & answer→
MCQ 311 MarkCytokinesis in plant cell takes place byAfurrowing✓cell plate formationCany one of (A) or (B)Dnone of theseAnswerCorrect option: B. cell plate formation(B) cell plate formationView full question & answer→
MCQ 321 MarkDuring telophase,Anuclear membrane is formed.Bnucleolus appears.Castral rays disappear.Dall the aboveView full question & answer→
MCQ 331 MarkReappearance of nucleolus is duringAtelophaseBprophaseCcytokinesisDinter-kinesisView full question & answer→
MCQ 341 MarkWhich of the following is the shortest phase?AmetaphaseBanaphaseCinterphaseDS-phaseView full question & answer→
MCQ 351 MarkDuring cell division, spindle fibers are attached toAtelomereBcentromereCchromomeresDchromosomeView full question & answer→
MCQ 361 MarkReplication of DNA takes place duringAprophase✓S-phaseCG2 phaseDInterkinesisAnswerCorrect option: B. S-phase(B) S-phaseView full question & answer→