Description : If n=16 in plant cell, then how many bivalents in metaphase-I of meiosis are possible ?
Last Answer : If n=16 in plant cell, then how many bivalents in metaphase-I of meiosis are possible ? A. 32 ... B. 16 Telravalents C. 16 Bivalents D. 32 Bivalents
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 : 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 : Assertion : Meiosis is also known as reduction division. Reason : Meiosis reduces the number of chromosomes in daughter cells.
Last Answer : Assertion : Meiosis is also known as reduction division. Reason : Meiosis reduces the number of ... D. If both Assertion & Reason are false.
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 : 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 : 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 : If a diploid cell contains twenty eight chromosomes and it goes through meiosis how many chromosomes will each daughter cell have?
Last Answer : Feel Free to Answer
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 : 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 : 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 : What occurs in meiosis? How is the chromosome number of daughter cells different?
Last Answer : •Gametes are produced by a variation of cell division called meiosis •Meiosis yields nonidentical daughter cells that have only one set of chromosomes, half as many as the parent cell
Description : Why is it nesessary for meiosis to produce cells with fewer chromosomes?
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 : 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 : Assertion : Replication of DNA not occurs during interkinesis. Reason : Divison of chromosomes takes place during meiosis-II.
Last Answer : Assertion : Replication of DNA not occurs during interkinesis. Reason : Divison of chromosomes takes place ... . If both Assertion & Reason are false.
Description : Meiosis I is reductional division. Meiosis II is equational division due to (a) pairing of homologous chromosomes (b) crossing over (c) separation of chromatids (d) disjunction of homologous chromosomes.
Last Answer : (c) separation of chromatids
Description : Meiosis II performs (a) separation of sex chromosomes (b) synthesis of DNA and centromere (c) separation of homologous chromosomes (d) separation of chromatids.
Last Answer : d) separation of chromatids.
Description : What Meiosis produces daughter cells.?
Last Answer : Need answer
Description : How many daughter cells are formed in one cycle of meiosis?
Last Answer : Ans. Four
Description : In meiosis the daughter cells are not similar to that of parent because of (a) Crossing over (b) Synapsis (c) Both (a) and (b) (d) None of these
Last Answer : Ans:(a)
Description : In meiosis, the daughter cells differ from parent cell as well as amongst themselves due to (a) segregation, independent assortment and crossing over (b) segregation and crossing over (c) independent assortment and crossing over (d) segregation and independent assortment.
Last Answer : (a) segregation, independent assortment and crossing over
Description : Unlike mitosis, meiosis results in the formation of a. diploid cells. b. haploid cells. c. 2N daughter cells. d. body cells.
Last Answer : b. haploid cells.
Description : What happens to the chromosomes during metaphase? -Biology
Last Answer : answer:
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 : 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 : 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 : 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 : 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 : 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 : Morphology of Chromosomes can be best studied at (1) Interphase (2) Prophase (3) Metaphase (4) Zygotene
Last Answer : Metaphase
Description : How does the number of chromosomes in each of the daughter cells produced in mitosis compared to the number of chromosomes in the original cell?
Last Answer : In which phase of plant cell mitosis is the most time spent? Inwhich phase of animal cell mitosis?
Description : A stage in cell division is shown in the figure. Select the answer which gives correct identification of the stage with its characteristics. (a) Cytokinesis Cell plate formed, mitochondria ... reforms. (d) Late anaphase Chromosomes move away from equatorial plate, Golgi complex not present.
Last Answer : (c) Telophase Nuclear envelope reforms,Golgi complex reforms.
Description : In a diploid cell before S-phase quantity of DNA is 20 pico gram (pg) after meiosis I what will be the quantity of DNA in each daughter cell ?
Last Answer : In a diploid cell before S-phase quantity of DNA is 20 pico gram (pg) after meiosis I what will be the quantity of ... 10 pg B. 20 pg C. 5 pg D. 40 pg
Description : According to Mendel’s law of segregation, what happens to chromosomes during meiosis?
Last Answer : According to mendel's law of segregation, what happens tochromosomes during meiosis is that, allele pairs do separateleaving each and every cell with a single allele for eachtrait.
Description : In meiosis, centromeres of chromosomes divide during-
Last Answer : In meiosis, centromeres of chromosomes divide during- A. anaphase of meiosis-II B. metaphase of meiosis ... of meiosis-I D. prophase of meiosis-II
Description : What happens to each pair of duplicated homologous chromosomes during meiosis 1?
Description : In Meiosis when the chromosomes first become visible in?
Description : Why is it necessary for meiosis to produce with fewer chromosomes?
Last Answer : If it did not, the chromosome number would double in eachgeneration.
Description : How do the chromosomes at the end of meiosis 1 compare with the chromosomes at the end of meiosis 2?
Last Answer : What is the answer ?
Description : What random distribution of homologous chromosomes during meiosis?
Description : In which stage of meiosis do homologous chromosomes separate?
Description : Which of the following statements is not true of two genes that show 50% recombination frequency? (a) The gene show independent assortment. (b) If the genes are present on the same chromo- some, they ... every meiosis. (c) The genes may be on different chromosomes. (d) The genes are tightly linked.
Last Answer : (b) If the genes are present on the same chromo- some, they undergo more than one cross-overs in every meiosis.
Description : In a test cross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates (a) the two genes are linked and present on the ... two genes are located on two different chromosomes (d) chromosomes failed to separate during meiosis.
Last Answer : (a) the two genes are linked and present on the same chromosome
Description : During meiosis I, the chromosomes start pairing at (a) zygotene (b) pachytene (c) diplotene (d) leptotene.
Last Answer : (a) zygotene
Description : Synapsis and crossing over of chromosomes occurs i which phases of meiosis? a) Interphase b) Prophase c) Meterphase d) Teleophase
Last Answer : ANSWER: B -- PROPHASE
Description : Assertion :- In anaphase number of chromosomes get doubled. Durring anaphase each chromosome split simultaneously and two daughter chromatids now refe
Last Answer : Assertion :- In anaphase number of chromosomes get doubled. Durring anaphase each chromosome split ... If both Assertion & Reason are false.