Match the stages of meiosis of 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
Spindle fibres attach on to:
During cell growth, DNA synthesis takes place in
In meiosis crossing over is initiated at:
Which of the following is not a characteristic feature during mitosis in somatic cells?
When cell has stalled DNA replication fork, which checkpoint should be predominantly activated?
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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:
Which of the following options gives the correct sequence of events during mitosis?
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?
The stage during which separation of the paired homologous chromosomes begins is
Cell in G0 phase :
The correct sequence of phases of cell cycle is :
After meiosis I, the resultant daughter cells have
Crossing over takes place between which chromatids and in which stage of the cell cycle ?
The dissolution of synaptonemal complex occurs during
Some dividing cells exit the cell cycle and enter vegetative inactive stage. This is called quiescent stage (G0). This process at the end of:
Identify the correct statement with regard to G1 phase (Gap 1) of interphase.
Dissolution of the synaptonemal complex occurs during:
Match the following with respect to meiosis: Column-I a. Zygotene b. Pachytene c. Diplotene d. Diakinesis Column-II (i) Terminalization (ii) Chiasmata (iii) Crossing over (iv) Synapsis Select the correct option from the following:
When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as:
Which of the following stages of meiosis involves division of centromere?
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?
Which of the following stages of meiosis involves division of centromere?
The centriole undergoes duplication during:
Which stage of meiotic prophase shows terminalisation of chiasmata as its distinctive feature?
Match List-I with List-II: List-I (a) S phase (b) G2 phase (c) Quiescent stage (d) G1 phase List-II (i) Proteins are synthesized (ii) Inactive phase (iii) Interval between mitosis and initiation of DNA replication (iv) DNA replication Choose the correct answer from the options given below:
Which one of the following never occurs during mitotic cell division?
The appearance of recombination nodules on homologous chromosomes during meiosis characterizes:
Regarding Meiosis, which of the statement(s) is incorrect?
Select the incorrect statement with reference to mitosis:
Match List-I with List-II: List-I (a) Metacentric chromosome (b) Acrocentric chromosome (c) Sub-metacentric chromosome (d) Telocentric chromosome List-II (i) Centromere situated close to the end forming one extremely short and one long arm (ii) Centromere in the middle forming two equal arms (iii) Centromere at terminal end (iv) Centromere slightly away from the middle forming one shorter and one longer arm Choose the correct answer from the options given below:
Among eukaryotes, replication of DNA takes place in
Doubling of the number of chromosomes can be achieved by disrupting mitotic cell division soon after
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:
Given are two statements. Statement 1: During G0 phase of cell cycle, the cell is metabolically inactive. Statement 2: 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:
During which stages of mitosis and meiosis, respectively does the centromere of each chromosome split?
Which one of the following is the quiescent stage of cell cycle ?
Select correct sequence of substages of Prophase-I of meiotic division: (A) Zygotene (B) Pachytene (C) Diakinesis (D) Leptotene (E) Diplotene
Match List I with List II: List I A. M Phase B. G2 Phase C. G1 Phase D. G1 Phase List II I. Proteins are synthesized II. Inactive phase III. Interval between mitosis and initiation of DNA replication IV. Equational division Choose the correct answer from the options given below:
The process of appearance of recombination nodules occurs at which sub stage of prophase I in meiosis?
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:
Given below are two statements. Statement 1: Chromosomes become gradually visible under light microscope during leptotene stage. Statement 2: The beginning 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.
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:
Spindle fibres attach to kinetochores of chromosomes during
What is the main function of the spindle fiber during mitosis?
The correct sequence of adult cell cycle phases is ________.
Statement I: Chromosomes are fully condensed at the end of prophase I. Statement II: Meiosis I resembles mitosis. Choose the most appropriate answer:
Match List I with List II : List-I (Phase of cell cycle) A. G1 phase B. S phase C. G2 Phase D. M phase List-II (Activity) I. Actual cell division occurs II. Cell is metabolically active and continuously grows but does not replicate its DNA III. Synthesis of DNA occurs and the amount of DNA per cell doubles IV. Proteins are synthesized while cell growth continues Choose the correct answer from the options given below :
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