InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
In a diploid cell, at which stage of cell cycle, the amount of DNA is doubledA. `G_(1)` and `G_(2)`-phaseB. `G_(0)`-phaseC. `S,G_(2) and M`-phaseD. S-phase |
| Answer» Correct Answer - D | |
| 52. |
Interphase is called the resting phase becauseA. It is the most active phase of the cell cycleB. There is no apparent activity related to cell divisionC. It does not prepare cell for cell divisionD. It is the phase where cell rests before entering into mitosis |
| Answer» Correct Answer - B | |
| 53. |
___________ represents the most active stage of the cell cycle.A. MetaphaseB. AnaphaseC. TelophaseD. Interphase |
| Answer» Correct Answer - D | |
| 54. |
Yeast cell can progress through the cell cycle in aboutA. 90 secB. 90 minC. 90 hrsD. 90 yrs |
| Answer» Correct Answer - B | |
| 55. |
During which phase in somatic cell division, replication of the DNA takes place?A. interphaseB. prophaseC. metaphaseD. telophase |
| Answer» Correct Answer - A | |
| 56. |
Stages in proper sequence of prophase I areA. zygotene ,leptotene,diakinesis, and diploteneB. leptotene,zygotene,pachytene and diakinesisC. liptotene,pachytene ,zygotene ,diakinesis and diploteneD. diplotene,diakinesis ,pachytene,zygotene and leptotene. |
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Answer» Correct Answer - B Stage in proper sequence of prophase I are Leptotene, Zygotene , Pachytene, Diplotene and Diakinesis. |
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| 57. |
Prophase of reduction division is divided into number of stages. The correct chronological sequence isA. Leptotenej-Pachytne-zygotene-diplotene-diakinesisB. Leptotene-diplotene-pachytene-zygotene-diakinesisC. Leptotene-zygotene-diplotene-pachytene-diakinesisD. Leptotene-zygotene-pacytene-diplotene-diakinesis |
| Answer» Correct Answer - d | |
| 58. |
"Bouquet-stage" occur in which sub stages of prophase -I ?A. zygoteneB. leptoteneC. pachyteneD. diplotene |
| Answer» Correct Answer - B | |
| 59. |
Stages in proper sequence of prophase I areA. Leptotene - Zygotene -Pachytene - Diplotene - DiakinesisB. Leptotene - Zygotene - Pachytene - Diakinesis - DiploteneC. Leptotene - Zygotene -Pachytene - DiakinesisD. Leptotene - Pachytene - Diplotene - Zygotene - Diakinesis |
| Answer» Correct Answer - A | |
| 60. |
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. C - karyokinesisB. D-Synthetic phaseC. A- CytokinesisD. B-Metaphase |
| Answer» Correct Answer - B | |
| 61. |
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. B-metaphaseB. C-karyokinesisC. D-synthetic phaseD. A-cytokinesis |
| Answer» Correct Answer - C | |
| 62. |
Which of the phases of cell cycle is of longest duration ? |
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Answer» Interphase is to the longest duration. It has following events and is divided in the following phases (a) `G_(1)` phase (Gap 1) Corresponds to the interval between mitosis and initiation of DNA replication. Cell is metabolically active and continuously grows but does not replicate its DNA. (b) S-phase (Synthesis phase) Marks the peroid during which DNA synthesis or replication takes place. (i) Amount of DNA per cell doubles. (ii) No increase in chromosome number. (c) `G_(2)` phase (Gap 2) Proteins are synthesised for the preparation of cell division, while cell growth continues. |
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| 63. |
This phase of cell cycle is a period of intense synthesis and growth. It constitutes 95% of the duration of cell cycle. It isA. interphaseB. telophaseC. prophaseD. anaphase. |
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Answer» Correct Answer - A |
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| 64. |
During the first metaphase of meiosis the centromeresA. Undergo divisionB. Do not divideC. Divide but do not separateD. Are not identical |
| Answer» Correct Answer - b | |
| 65. |
When cell has stalled DNA replication fork , which checkpoint should be predominantly activatedA. `G_(1)//S`B. `G_(2)//M`C. MD. Both `G_(2)//M and M` |
| Answer» Correct Answer - A | |
| 66. |
Select an incorrect statement w.r.t. metaphaseA. Spindle fibres are attached to small discshaped structures at the surface of centromeres called kinetochoresB. The plane of alignment of the homologous pair of chromosomes at metaphase is referred to as the metaphasic plateC. Chromosome appears to be made up of two sister chromatidsD. The size of chromosome that take place during this phase |
| Answer» Correct Answer - B | |
| 67. |
All the essential stages that take place during meiosis, exceptA. Two successive divisions without any DNA replication occuring between themB. Formation of chiasmata and crossing overC. Segregation of homologous chromosomesD. Number of chromosomes in daughter cells after meiosis II is reduced to balf but the amount of DNA remains the same |
| Answer» Correct Answer - D | |
| 68. |
Match the stages of meiosis in Column-I to their characteristic feature in Column-II and select the correct option using the codes given below: |
| Answer» Correct Answer - C | |
| 69. |
Match the stages of meiosis in Column - I to their characteristic features in Column - II and select the correct option using the codes given below A. `{:(1,2,3,4),("(iii)","(iv)","(ii)","(i)"):}`B. `{:(1,2,3,4),("(i)","(iv)","(ii)","(iii)"):}`C. `{:(1,2,3,4),("(ii)","(iv)","(iii)","(i)"):}`D. `{:(1,2,3,4),("(iv)","(iii)","(ii)","(i)"):}` |
| Answer» Correct Answer - A | |
| 70. |
All the essential stages that take place during meiosis, exceptA. Two successive divisions without any DNA replication occuring between themB. Formation of chisamata and crossing overC. Segregation of homologous chromosomesD. Number of chromosomes in daughter cells after meiosis-II is reduced to half, but the amount of DNA remains the same |
| Answer» Correct Answer - D | |
| 71. |
Which of the following events are not characteristic features of telophase A. Cchromosome material condensess to form compact mitotic chromosomes B. Nucleolus, Golgi complex and ER reform C. Nuclear envelope assembles around the chromosome clusters D. Centromeres split and chromatids separate E. Chromosomes cluster at opposite, spindle poles and their identify as discrete elemetns is lost.A. A, B and D onlyB. A and D onlyC. B and C onlyD. C,D and E only |
| Answer» Correct Answer - b | |
| 72. |
Refer to the given stages A,B,C and D of meiosis I and select the incorrect statement regarding them. A. The last stage of A is diakinesis which is marked by terminalisation of chiasmata.B. In stage B, mictrotublues from the opposite poles of the spindle attach to the pair of homologous chromosomes.C. In stage C, homologous chromosomes separate. While sister chromatids remain associated at their centromeres.D. In stage D, nuclear membrane and nucleolus disappear, cytokinesis follows and this is called as dyad of cells. |
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Answer» Correct Answer - D In the given figure A, B,C and D represent prophase I, metaphae I, anaphase I and telophase I, of meiosis I respectively. In telophase stage of meiosis I nuclear membrane and nucleolus reappear, cytokinesis folows and this is called yad of cells. |
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| 73. |
Mitotic spindle have main proteinA. TubulinB. MyosinC. TropomyocinD. Dynein |
| Answer» Correct Answer - a | |
| 74. |
Mitotic stages are not observed inA. SaccharomycesB. E.coliC. CosmariumD. Chlorella |
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Answer» Correct Answer - B Mitotic stages are not observed in E.coli. |
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| 75. |
Refer to the given figures and answer Which of the following shown the correct sequency of the given mitotic stages?A. `DrarrCrarrBrarrA`B. `CrarrBrarrDrarrA`C. `BrarrArarrCrarrD`D. `CrarrBrarrArarrD` |
| Answer» Correct Answer - D | |
| 76. |
Which of the protein is found in spindle fibres?A. TubulinB. albuminC. mucinD. haemoglobin |
| Answer» Correct Answer - A | |
| 77. |
A chromosome, in which the centromere is situated is situated close to its end so that one arm is very short and other vey long isA. acrocentricB. telocentricC. sub-metacentricD. metacentric |
| Answer» Correct Answer - A | |
| 78. |
Most organelles show duplication in cell cycle duirngA. `G_(1)`- phaseB. `G_(0)` - phaseC. S - phaseD. `G_(2)` -phase |
| Answer» Correct Answer - A | |
| 79. |
Duplication of chromosomes without the division of nucleus is calledA. CytokinesisB. PlasmotomyC. EndomitosisD. Dinomitosis |
| Answer» Correct Answer - C | |
| 80. |
Chromatin fibres duplication, Genetic material -4C, Histone protein synthesis, Membranous organelle duplication, DNA replication, centriole duplication. How many of the above features are associated with synthesis phase of cel cycle ?A. ThreeB. FiveC. FourD. Six |
| Answer» Correct Answer - B | |
| 81. |
Assertion: Meiotic division results in the production of haploid cells. Reason: Synapsis occurs during zygotene of meiosis.A. Both assertion and reason are true and the reason is a correct explanation of assertion.B. Both assertion and reaso are true, but the reason is not the correct explanation of the assertion.C. Assertion is true, but reason is falseD. Assertion is false, but reason is true |
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Answer» Correct Answer - B Meiotic division is a reductional division. It occurs in reproductive cells and maintains the fixed number of chromosomes in sexually reproducing organisms. Prophase-I of meiotic division is a long phase, which is divided into five subphases, i.e., leptotene, zygotene, pachytene, diplotene and diakinesis. In zygotene phase, homologous chromosomes pair up, this process is called synapsis. each pair is called a bivalent. |
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| 82. |
Chromosome duplication without nuclear division refersA. meiosisB. mitosisC. androgenesisD. endomitiosis. |
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Answer» Correct Answer - D Endomitosis is the replication of chromosomes in the absence of cell or nuclear division resulting in numerous copies withing each cell. It occurs in the salivary glands of Drosophila and other files. |
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| 83. |
The nuclear membrane disappears inA. metaphaseB. anaphaseC. early prophaseD. late prophase |
| Answer» Correct Answer - D | |
| 84. |
Nuclear envelope disappears atA. MetaphaseB. AnaphaseC. Early prophaseD. Late prophase |
| Answer» Correct Answer - D | |
| 85. |
When nuclear division takes place without cytoplasmic division, it results in the formation ofA. PolytenyB. SyncytiumC. PolyploidyD. Amitosis |
| Answer» Correct Answer - C | |
| 86. |
Assertion: Meiosis II is known as equational or homotypic division. Reason: Meiosis II produces same number of chromosome in cell.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true but reason is not the correct explanation of the assertion.C. If assertion is true but reason is false.D. If both assertion and reason are false. |
| Answer» Correct Answer - A | |
| 87. |
Assertion: Synaptonemal complex develops between two synapsed homologous chromosomes. Rasson : Mitosis cannot be completed without the synaptonemal complex.A. IF both Assertion & Reason are true and the reason followed is the correct explanation of the assertion then mark (1).B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion then mark (2).C. If Assertion is true statement but Reason is false, then mark (3).D. If both Assertion and Reason are false statement then mark (4). |
| Answer» Correct Answer - C | |
| 88. |
Synaptonemal complex is a structure ofA. cytokinesisB. terminalisationC. chromosomal dysfunctionD. chromosomal pairing |
| Answer» Correct Answer - D | |
| 89. |
Match of the iem in column I with those in column II and the choose the correct answer. ltBrgt .A. A-1,B-2B. A-2,B-3C. A-3,B-4D. A-4,B-1 |
| Answer» Correct Answer - C | |
| 90. |
The substance which causes doubling of the chromosome is calledA. carcinogenB. teratogenC. clasterogenD. colchicine |
| Answer» Correct Answer - D | |
| 91. |
Synaptonemal complex is formed duringA. pachyteneB. leptoteneC. zygoteneD. diakinesis |
| Answer» Correct Answer - C | |
| 92. |
Which does not occur in interphase of eukaryotic cell divisionA. Increase of ATP synthesisB. Increase of RNA synthesisC. Increase of DNA synthesisD. Reduction in cell size |
| Answer» Correct Answer - D | |
| 93. |
The given diagram shows a cell undergoing meiosis Which diagram shows the next stage in the processA. B. C. D. |
| Answer» Correct Answer - c | |
| 94. |
56 cells are produced in meiosis in whichA. first division is reductionalB. First division is equationalC. Second division is reductionalD. None of these |
| Answer» Correct Answer - a | |
| 95. |
The stage during which separation of the paired homologous chromosomes begin isA. PachyteneB. DiploteneC. DiakinesisD. Zygotene |
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Answer» Correct Answer - B The stage during which sepration of the paire homologous chromosomes begins is diplotene. |
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| 96. |
The given diagram of a cell undergoing meiosis, indicated that crossing over occurs only at the chiasma Which of the following gametes will NOT be formed from this cellA. B. C. D. |
| Answer» Correct Answer - a | |
| 97. |
The given figure shows a cell undergoing in Prophase I Keeping the diagram is correct for one of the cell at the end of meiosisA. B. C. D. |
| Answer» Correct Answer - c | |
| 98. |
Which one of the following precedes re-formation of the nuclear envelope during M phase of the cell cycle.A. Transcription from chromosomes and ressembly of the nuclear lamina.B. Decondensation from chromosomes, and reassembly of the nuclear lamina.C. Formation of the contractile ring, and transcription from chromosomesD. Formation of the contractile ring, and formation of the phragmoplast |
| Answer» Correct Answer - D | |
| 99. |
Which one of the following precedes re-formation of the nuclear envelope during M phase of the cell cycle.A. Transcription from chromosomes and reassembly of the nuclear laminaB. Formation of the contractile ring and formation of the phragmoplastC. Formation of the contractile ring and transcription from chromosomeD. Decondensation from chromosomes and reassembly of the nuclear lamina |
| Answer» Correct Answer - D | |
| 100. |
Colchicine prevents the mitosis of cell atA. Prophase stageB. Anaphase stageC. Telophase stageD. Metaphase stage |
| Answer» Correct Answer - D | |