Cell Cycle and Cell Division
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Cell Cycle and Cell Division
80 questions · Biology · NEET
- What is the main function of the spindle fibers during mitosis?2025 · Q13 · MCQ
- Spindle fibers attach to kinetochores of chromosomes during2024 · Q26 · MCQ
- Given below are two statements: Statement I : Chromosomes become gradually visible under light microscope during leptotene stage. Statement II : The beginning of diplotene stage is recognized by dissolution of synaptonemal complex. In the…2024 · Q28 · MCQ
- Following are the stages of cell division : A. Gap 2 phase B. Cytokinesis C. Synthesis phase D. Karyokinesis E. Gap 1 phase Choose the correct sequence of stages from the options given below :2024 · Q58 · MCQ
- Match List I with List II : Choose the correct answer from the options given below Includes table2024 · Q66 · MCQ
- Given below are two statements: Statement I: Failure of segregation of chromatids during cell cycle resulting in the gain or loss of whole set of chromosome in an organism is known as aneuploidy. Statement II: Failure of cytokinesis after…2024 · Q28 · MCQ
- Recombination between homologous chromosomes is completed by the end of2024 · Q29 · MCQ
- Match List-I with List-II : Choose the correct answer from the options given below: Includes table2024 · Q30 · MCQ
- Match List-I with List-II. Choose the correct answer from the options given below : Includes table2024 · Q58 · MCQ
- Match List-I with List-II. Choose the correct answer from the options given below: Includes table2024 · Q66 · MCQ
- During which stages of mitosis and meiosis, respectively does the centromere of each chromosome split ?2023 · Q41 · MCQ
- Which one of the following is the quiescent stage of cell cycle?2023 · Q49 · MCQ
- The dissolution of synaptonemal complex occurs during :2023 · Q7 · MCQ
- Select correct sequence of substages of Prophase-I of Meiotic division : (A) Zygotene (B) Pachytene (C) Diakinesis (D) Leptotene (E) Diplotene Choose the correct answer from the options given below :2023 · Q73 · MCQ
- Doubling of the number of chromosomes can be achieved by disrupting mitotic cell division soon after :2023 · Q8 · MCQ
- Among eukaryotes, replication of DNA takes place in :2023 · Q13 · MCQ
- Match List I with List II: Choose the correct answer from the options given below : Includes table2023 · Q31 · MCQ
- The process of appearance of recombination nodules occurs at which sub stage of prophase I in meiosis?2023 · Q7 · MCQ
- Select the correct statements. A. Tetrad formation is seen during Leptotene. B. During Anaphase, the centromeres split and chromatids separate. C. Terminalization takes place during Pachytene. D. Nucleolus, Golgi complex and ER are…2023 · Q75 · MCQ
- Given below are two statements: Statement I : During G0 phase of cell cycle, the cell is metabolically inactive. Statement II : The centrosome undergoes duplication during S phase of interphase. In the light of the above statements, choose…2023 · Q77 · MCQ
- Which of the following stages of meiosis involves division of centromere?2023 · Q8 · MCQ
- Which stage of meiosis can last for months or years in the oocytes of some vertebrates?2022 · Q2 · MCQ
- Identify the correct sequence of events during Prophase I of meiosis: (a) Synapsis of homologous chromosomes (b) Chromosomes become gradually visible under microscope (c) Crossing over between non-sister chromatids of homologous…2022 · Q43 · MCQ
- Bivalent or Tetrad formation is a characteristic feature observed during2022 · Q53 · MCQ
- With respect to metaphase, which of the following statements is incorrect?2022 · Q82 · MCQ
- The appearance of recombination nodules on homologous chromosomes during meiosis characterizes:2022 · Q30 · MCQ
- Match List I with List II. Choose the correct answer from the options given below: Includes table2022 · Q36 · MCQ
- Regarding Meiosis, which of the statements is incorrect?2022 · Q57 · MCQ
- Select the incorrect statement with reference to mitosis :2022 · Q73 · MCQ
- Which one of the following never occurs during mitotic cell division?2022 · Q8 · MCQ
- Which of the following stages of meiosis involves division of centromere?2021 · Q16 · MCQ
- Match List-I with List-II. Choose the correct answer from the options given below. Includes table2021 · Q35 · MCQ
- The fruit fly has 8 chromosomes (2n) in each cell. During interphase of Mitosis if the number of chromosomes at G1 phase is 8, what would be the number of chromosomes after S phase?2021 · Q48 · MCQ
- Which stage of meiotic prophase shows terminalisation of chiasmata as its distinctive feature?2021 · Q51 · MCQ
- The centriole undergoes duplication during :2021 · Q61 · MCQ
- Some dividing cells exit the cell cycle and enter vegetative inactive stage. This is called quiescent stage (G0). This process occurs at the end of2020 · Q20 · MCQ
- Match the following with respect to meiosis (A) Zygotene (i) Terminalization (B) Pachytene (ii) Chiasmata (C) Diplotene (iii) Crossing over (D) Diakinesis (iv) Synapsis Select the correct option from the following2020 · Q21 · MCQ
- Dissolution of the synaptonemal complex occurs during2020 · Q22 · MCQ
- Identify the correct statement with regard to G1 phase (Gap 1) of interphase2020 · Q80 · MCQ
- The correct sequence of phases of cell cycle is :2019 · Q66 · MCQ
- Cells in G0 phase :2019 · Q72 · MCQ
- The stage during which separation of the paired homologous chromosomes begins is2018 · Q2 · MCQ
- Anaphase Promoting Complex (APC) is a protein degradation machinery necessary for proper mitosis of animal cell. If APC is defective in a human cell, which of the following is expected to occur?2017 · Q39 · MCQ
- Which of the following options gives the correct sequence of events during mitosis?2017 · Q40 · MCQ
- Spindle fibres attach on to2016 · Q40 · MCQ
- Which of the following is not a characteristic feature during mitosis in somatic cells?2016 · Q41 · MCQ
- In meiosis crossing over is initiated at2016 · Q42 · MCQ
- During cell growth, DNA synthesis takes place on2016 · Q36 · MCQ
- When cell has stalled DNA replication fork, which checkpoint should be predominantly activated?2016 · Q37 · MCQ
- 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. Includes table2016 · Q38 · MCQ
- Arrange the following events of meiosis in correct sequence (i) Crossing over (ii) Synapsis (iii) Terminalisation of chiasmata (iv) Disappearance of nucleolus2015 · Q33 · MCQ
- A somatic cell that has just completed the S phase of its cell cycle, as compared to gamete of the same species, has2015 · Q36 · MCQ
- Select the correct option. Includes table2015 · Q37 · MCQ
- During which phase(s) of cell cycle, amount of DNA in a cell remains at 4C level if the initial amount is denoted as 2C?2014 · Q2 · MCQ
- In 'S' phase of the cell cycle2014 · Q3 · MCQ
- The enzyme recombinase is required at which stage of meiosis?2014 · Q4 · MCQ
- During meiosis I, the chromosomes start pairing at2013 · Q39 · MCQ
- During the metaphase stage of mitosis, spindle fibres attach to chromosomes at2013 · Q40 · MCQ
- A stage of mitosis is shown in the diagram. Which stage is it and what are its characteristics? Includes diagram2013 · Q55 · MCQ
- The complex formed by a pair of synapsed homologous chromosomes is called2013 · Q41 · MCQ
- A stage in cell division is shown in the figure. Select the answer which gives correct identification of the stage with its characteristics. Includes diagram2013 · Q57 · MCQ
- Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres.2012 · Q17 · MCQ
- During gamete formation, the enzyme recombinase participates during2012 · Q47 · MCQ
- Given below is the representation of a certain event at a particular stage of a type of cell division. Which is this stage? Includes diagram2012 · Q66 · MCQ
- At metaphase, chromosomes are attached to the spindle fibres by their2011 · Q20 · MCQ
- Select the correct option with respect to mitosis.2011 · Q43 · MCQ
- During mitosis, ER and nucleolus begin to disappear at2010 · Q41 · MCQ
- Which stages of cell division do the following figures A and B represent respectively? Includes diagram2010 · Q68 · MCQ
- Synapsis occurs between2009 · Q41 · MCQ
- 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? Includes diagram2009 · Q42 · MCQ
- At what stage of the cell cycle are histone proteins synthesized in a eukaryotic cell?2005 · Q42 · MCQ
- If you are provided with root-tips of onion in your class and are asked to count the chromosomes, which of the following stages can you most conveniently look into?2004 · Q2 · MCQ
- In the somatic cell cycle2004 · Q36 · MCQ
- Which one of the following precedes reformation of the nuclear envelope during M phase of the cell cycle?2004 · Q9 · MCQ
- Mitotic spindle is mainly composed of which protein?2002 · Q41 · MCQ
- Best material for the study of mitosis in laboratory is2002 · Q42 · MCQ
- If a diploid cell is treated with colchicine then it becomes : -2002 · Q45 · MCQ
- What is the reason of formation of embryoid from pollen grain in tissue culture medium ?2002 · Q46 · MCQ
- Spindle fibre unite with which structure of chromosomes?2000 · Q36 · MCQ
- In which stage of cell cycle, DNA replication occurs?2000 · Q37 · MCQ