Description : If the number of bivalents are 8 in metaphase - I, what shall be the number of chromosomes in daughter cells after meiosis -I and meiosis -II respecti
Last Answer : If the number of bivalents are 8 in metaphase - I, what shall be the number of chromosomes in daughter cells after ... 4 and 4 C. 8 and 8 D. 16 and 8
Description : A cell cycle consists of (a) Mitosis and meiosis (b) GI, the Sphase, and G2 (c) Prophase, metaphase, anaphase and telophase (d) Interphase and mitosis
Last Answer : Ans:(d)
Description : The given figure is the representation of a certain event at a particular stage of a type of cell division. Which is this stage? (a) Prophase I during meiosis (b) Prophase II during meiosis (c) Prophase of mitosis (d) Both prophase and metaphase of mitosis
Last Answer : (a) Prophase I during meiosis
Description : The number of chromosome groups at the equatorial plate in metaphase-I of meiosis in a plant with 2n=50 shall be
Last Answer : The number of chromosome groups at the equatorial plate in metaphase-I of meiosis in a plant with 2n=50 shall be A. 50 B. 100 C. 75 D. 25
Description : Number of chromatids at metaphase is (a) two each in mitosis and meiosis (b) two in mitosis and one in meiosis (c) two in mitosis and four in meiosis (d) one in mitosis and two in meiosis.
Last Answer : (a) two each in mitosis and meiosis
Description : 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 Column II A. Pachytene (i) Pairing of homologous chromosomes B. Metaphase I (ii) ... , C-(iii), D-(i) (d) A-(iv), B-(iii), C-(ii), D-(i)
Last Answer : (a) A-(iii), B-(iv), C-(ii), D-(i)
Description : Select the incorrect match. (a) Lampbrush – Diplotene bivalents chromosomes (b) Allosomes – Sex chromosomes (c) Sub-metacentric – L-shaped chromosomes chromosomes (d) Polytene – Oocytes of chromosomes amphibians
Last Answer : (d) Polytene – Oocytes of chromosomes amphibians
Description : Select the incorrect match : (1) Lampbrush – Diplotene bivalents chromosomes (2) Allosomes – Sex chromosomes (3) Submetacentric – L-shaped chromososmes chromosomes (4) Polytene – Oocytes of amphibians chromosomes
Last Answer : (4) Polytene – Oocytes of amphibians chromosomes
Description : $ Colchicine is a chemical which can arrest cell division at metaphase ! Colchicine is also called mitotic tympanic cavity of the ear.
Last Answer : $ Colchicine is a chemical which can arrest cell division at metaphase ! Colchicine is also called mitotic ... D. If both As and R are wrong.
Description : Assertion :- Morphology of chromosomes is most studied during metaphase of cell division. Reason :- Complete disintegration of nuclear envelope marks
Last Answer : Assertion :- Morphology of chromosomes is most studied during metaphase of cell division. Reason :- ... D. If both Assertion & Reason are false.
Description : A cell has 46 chromosomes at each pole in mitotic telophase. In tis division the number of chromatids at the metaphase was :-
Last Answer : A cell has 46 chromosomes at each pole in mitotic telophase. In tis division the number of chromatids at the metaphase was :- A. 23 B. 46 C. 92 D. 69
Description : What is missing from the cell in metaphase?
Last Answer : Need answer
Description : The period of cell division when the nuclear envelop and nucleolus totally disappear is called a. Prophase b. Metaphase c. anaphase d. telophase
Last Answer : Metaphase
Description : The period between active cell divisions in called a. anaphase b. metaphase c. interphase d. telephase
Last Answer : interphase
Description : During cell division in apical meristem, the nuclear membrane appears in (a) telophase (b) cytokinesis (c) metaphase (d) anaphase.
Last Answer : (a) telophase
Description : Which stages of cell division do the following figures A and B represent respectively? Fig. A Fig. B (a) Metaphase Telophase (b) Telophase Metaphase (c) Late anaphase Prophase (d) Prophase Anaphase
Last Answer : (c) Late anaphase Prophase
Description : Select the correct option with respect to mitosis. (a) Chromatids separate but remain in the centre of the cell in anaphase. (b) Chromatids start moving towards opposite poles in telophase. (c ... . (d) Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase.
Last Answer : (d) Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase.
Description : 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 - karyokinesis (b) D - synthetic phase (c) A - cytokinesis (d) B - metaphase
Last Answer : (b) D - synthetic phase
Description : Arrange the following events of meiosis in correct sequence : (a) Crossing over (b) Synapsis ( c ) Terminalisation of chaismata (d) Disappearance of n
Last Answer : Arrange the following events of meiosis in correct sequence : (a) Crossing over (b) Synapsis ( c ) Terminalisation of ... . (a), (b), ( c ), (d)
Description : n angiosperms, microsporogenesis and megasporo -genesis (a) involve meiosis (b) occur in ovule (c) occur in anther (d) form gametes without further divisions.
Last Answer : (a) involve meiosis
Description : Which statement best explains the evolutionary advantage of meiosis? (a) Meiosis is necessary for sexual reproduction. (b) Genetic recombinations are possible from generation to generation. (c) Meiosis ... to generation. (d) The same genetic system is passed on from generation to generation.
Last Answer : (b) Genetic recombinations are possible from generation to generation.
Description : What is the difference between a prophase and a metaphase?
Last Answer : A: Prophase is the first stage of mitosis, during which the chromatin condenses into visible chromosomes, while metaphase is the stage during which the chromosomes align along the center of the cell.
Description : What is the main event of metaphase? -Biology
Last Answer : answer:
Description : What is the function of metaphase plate? -Biology
Description : What happens to the chromosomes during metaphase? -Biology
Description : At metaphase, chromosmes are attached to the spindle fibres by their
Last Answer : At metaphase, chromosmes are attached to the spindle fibres by their A. Centromere B. Satellites C. Secondary cnstrictions D. Kinetochores
Description : The two chromatids of a metaphase chromosome represent
Last Answer : The two chromatids of a metaphase chromosome represent A. replicated DNA to be separated ... and paternal chromosomes joined at the centromere
Description : How long does metaphase last?
Last Answer : What is the answer ?
Description : What star shaped structure radiates from each centriole during metaphase?
Description : Colchicines prevent the spindle formation during: (a) Prophase (b) Metaphase (c) Anaphase (d) Telophase
Last Answer : Ans. ((b))
Description : In meios-I, the Centro mere undergoes: (a) Division between anaphase and Interphase (b) Division between prophase and metaphase (c) Division but the daughter chromosomes do not separate (d) No division
Last Answer : Ans. ((d))
Description : Azides and cyanide inhibit: (a) Metaphase (b) Prophase (c) Anaphase (d) Telophase
Description : Which of the following is not a correct combination? (a) Prophase, metaphase, anaphase, telophase (b) Leptonema, zygonema, pachynema, diplonema (c) Diplonema, anaphase I, telophase I, mitosis (d) Prophase II, metaphase II, anaphase II, telophase II
Last Answer : Ans:(c)
Description : Morphology of Chromosomes can be best studied at - (1) Interphase (2) Prophase (3) Metaphase (4) Zygotene
Last Answer : (3) Metaphase Explanation: The morphology of the chromosomes can be distinctly studied at metaphase stage of cell division because at this stage chromosomes are in highly condensed ... constriction (centromere), Secondary constriction (nucleolar organizer), satellite, telomere, and chromosmere.
Description : The division of cytoplasm is called a. Telophase b. Metaphase c. Cytokinesis d. None of them
Last Answer : Cytokinesis
Description : . The stage in which each centromere divides is called a. Prophase b. Metaphase c. anaphase d. telophase
Last Answer : anaphase
Description : The chromatids become visible in a. interphase b. prophase c. anaphase d. metaphase
Last Answer : prophase
Description : Segregation of Mendelian factors (no linkage, no crossing over) occurs during (a) anaphase I (b) anaphase II (c) diplotene (d) metaphase I.
Last Answer : a) anaphase I
Description : Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres. (a) Metaphase I (b) Metaphase II (c) Anaphase I (d) Anaphase I
Last Answer : (c) Anaphase I
Description : During gamete formation, the enzyme recombinase participates during (a) metaphase I (b) anaphase II (c) prophase I (d) prophase II
Last Answer : (c) prophase I
Description : Mitotic anaphase differs from metaphase in possessing (a) same number of chromosomes and same number of chromatids (b) half number of chromosomes and half number of chromatids (c) half number of ... and same number of chromatids (d) same number of chromosomes and half number of chromatids.
Last Answer : (d) same number of chromosomes and half number of chromatids.
Description : Which of the following represents the best stage to view the shape, size and number of chromosomes? (a) Prophase (b) Metaphase (c) Interphase (d) Telophase
Last Answer : (b) Metaphase
Description : 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? (a) Metaphase (b) Telophase (c) Anaphase (d) Prophase
Last Answer : (a) Metaphase
Description : During mitosis, ER and nucleolus begin to disappear at (a) late prophase (b) early metaphase (c) late metaphase (d) early prophase.
Last Answer : (d) early prophase
Description : At metaphase, chromosomes are attached to the spindle fibres by their (a) satellites (b) secondary constrictions (c) kinetochores (d) centromeres.
Last Answer : (c) kinetochores
Description : A stage of mitosis is shown in the diagram. Which stage is it and what are its characteristics? (a) Metaphase - Spindle fibers attached to kinetochores, centromeres split and chromatids ... chromatids separate and start moving away. (d) Late prophase - Chromosomes move to spindle equator.
Last Answer : (b) Metaphase - Chromosomes moved to spindle equator, chromosomes made up of two sister chromatids.
Description : During the metaphase stage of mitosis, spindle fibres attach to chromosomes at (a) kinetochore (b) both centromere and kinetochore (c) centromere, kinetochore and areas adjoining centromere (d) centromere.
Last Answer : a) kinetochore
Description : Which typical stage is known for DNA replication? (a) S-phase (b) G2-phase (c) metaphase (d) G1-phase
Last Answer : (a) S-phase
Description : The following antineoplastic drug is a mitotic inhibitor and causes metaphase arrest: A. Busulfan B. Vincristine C. Cytarabine D. Procarbazine
Last Answer : B. Vincristine
Description : During gamete formation, the enzyme recombinase participates during (1) Prophase-II (2) Metaphase-I (3) Anaphase-II (4) Prophase-I
Last Answer : (4) Prophase-I