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Cell cycle, mitosis, meiosis

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Every question from past board papers on Cell cycle, mitosis, meiosis, newest paper first. Open any question for its full worked answer.

NEET UG 2025 question paper (official, booklet 45)

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  1. What is the main function of the spindle fibers during mitosis ?

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NEET UG 2024 question paper (official, booklet S6)

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  1. Spindle fibers attach to kinetochores of chromosomes during

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  2. Given below are two statements:

    Statement I : Chromosomes become gradually visible under light microscope during leptotene stage.

    Statement II : The begining of diplotene stage is recognized by dissolution of synaptonemal complex.

    In the light of the above statements, choose the correct answer from the options given below:

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  3. 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 :

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  4. Match List I with List II :

    List I (Sub Phases of Prophase I):

    A. Diakinesis

    B. Pachytene

    C. Zygotene

    D. Leptotene

    List II (Specific characters):

    I. Synaptonemal complex formation

    II. Completion of terminalisation of chiasmata

    III. Chromosomes look like thin threads

    IV. Appearance of recombination nodules

    Choose the correct answer from the options given below :

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NEET UG 2023 question paper (official, booklet G6)

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  1. Which of the following stages of meiosis involves division of centromere?

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  2. The process of appearance of recombination nodules occurs at which sub stage of prophase I in meiosis?

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  3. Among eukaryotes, replication of DNA takes place in -

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  4. Match List I with List II :

    List I | List II

    A. M Phase | I. Proteins are synthesized

    B. G\(_2\) Phase | II. Inactive phase

    C. Quiescent stage | III. Interval between mitosis and initiation of DNA replication

    D. G\(_1\) Phase | IV. Equational division

    Choose the correct answer from the options given below :

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  5. Given below are two statements:

    Statement I: During G\(_0\) 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 the most appropriate answer from the options given below:

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  6. 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 reformed during Telophase.

    E. Crossing over takes place between sister chromatids of homologous chromosome.

    Choose the correct answer from the options given below:

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NEET UG 2022 question paper (official, booklet R6)

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  1. Which one of the following never occurs during mitotic cell division ?

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  2. The appearance of recombination nodules on homologous chromosomes during meiosis characterizes :

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  3. Regarding Meiosis, which of the statements is incorrect ?

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  4. Select the incorrect statement with reference to mitosis :

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NEET UG 2021 question paper (official, booklet M4)

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  1. Which of the following stages of meiosis involves division of centromere ?

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  2. Match List - I with List - II.

    List - I | List - II

    (a) S phase | (i) Proteins are synthesized

    (b) G2 phase | (ii) Inactive phase

    (c) Quiescent stage | (iii) Interval between mitosis and initiation of DNA replication

    (d) G1 phase | (iv) DNA replication

    Choose the correct answer from the options given below.

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  3. The fruit fly has 8 chromosomes (2n) in each cell. During interphase of Mitosis if the number of chromosomes at G\(_1\) phase is 8, what would be the number of chromosomes after S phase ?

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  4. Which stage of meiotic prophase shows terminalisation of chiasmata as its distinctive feature ?

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  5. The centriole undergoes duplication during :

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NEET UG 2020 question paper (official, booklet E1)

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  1. Identify the correct statement with regard to \(G_1\) phase (Gap 1) of interphase.

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  2. 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 following :

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  3. Some dividing cells exit the cell cycle and enter vegetative inactive stage. This is called quiescent stage (G\(_0\)). This process occurs at the end of :

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  4. Dissolution of the synaptonemal complex occurs during :

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NEET UG 2019 question paper (official, booklet P1)

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  1. The correct sequence of phases of cell cycle is :

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  2. Cells in G\(_0\) phase :

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NEET UG 2018 question paper (official, booklet EE)

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  1. The stage during which separation of the paired homologous chromosomes begins is

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NEET UG 2017 question paper (official, booklet B)

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  1. Anaphase Promoting Complex (APC) is a protein degradation machinery necessary for proper mitosis of animal cells. If APC is defective in a human cell, which of the following is expected to occur ?

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  2. Which of the following options gives the correct sequence of events during mitosis ?

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NEET UG 2016 Phase 1 question paper (official, booklet A)

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  1. Spindle fibres attach on to :

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  2. In meiosis crossing over is initiated at :

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  3. Which of the following is not a characteristic feature during mitosis in somatic cells ?

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  4. A cell at telophase stage is observed by a student in a plant brought from the field. He tells his teacher that this cell is not like other cells at telophase stage. There is no formation of cell plate and thus the cell is containing more number of chromosomes as compared to other dividing cells. This would result in :

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NEET UG 2016 Phase 2 question paper (official, booklet ZZ)

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  1. During cell growth, DNA synthesis takes place in

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  2. 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 :

    Column—I: a. Pachytene; b. Metaphase I; c. Diakinesis; d. Zygotene

    Column—II: (i) Pairing of homologous chromosomes; (ii) Terminalization of chiasmata; (iii) Crossing-over takes place; (iv) Chromosomes align at equatorial plate

    Codes :

    a b c d

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  3. When cell has stalled DNA replication fork, which checkpoint should be predominantly activated?

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