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 : Select the correct option. Column I Column II A. Synapsis aligns (i) Anaphase II homologous chromosomes B. Synthesis of (ii) Zygotene RNA and protein C. Action of enzyme (iii)G2-phase recombinase D. Centromeres do (iv) Anaphase I not ... ), C-(iii), D-(iv) (d) A-(ii), B-(iii), C-(v), D-(iv)
Last Answer : (d) A-(ii), B-(iii), C-(v), D-(iv)
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 : 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 : 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 : What happens to each pair of duplicated homologous chromosomes during meiosis 1?
Last Answer : Need answer
Description : What random distribution of homologous chromosomes during meiosis?
Last Answer : What is the answer ?
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 : 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 : 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 : 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 : Why is it nesessary for meiosis to produce cells with fewer chromosomes?
Last Answer : Feel Free to Answer
Description : If a diploid cell contains twenty eight chromosomes and it goes through meiosis how many chromosomes will each daughter cell have?
Description : How do the chromosomes at the end of meiosis 1 compare with the chromosomes at the end of meiosis 2?
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 : 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 : 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 : 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 : In which phase of meiosis ll does the cytoplasm divide?
Description : Colchicine is an inhibitory chemical, which (a) stops the functioning of centriole (b) prevents attaching of centromeres with rays (c) prevents the spindle formation in mitosis (d) prevents the formation of equatorial plane.
Last Answer : (c) prevents the spindle formation in mitosis
Description : During which stage of gametogenesis meiosis occurs ?
Last Answer : During which stage of gametogenesis meiosis occurs ? A. Growth phase B. Multiplication phase C. Maturation phase D. None of the above
Description : During meiosis how cycles of nucleus division, DNA replication and division of centromere take place respectively :-
Last Answer : During meiosis how cycles of nucleus division, DNA replication and division of centromere take place respectively :- ... , Two, One D. Two, One, One
Description : In meiosis, the centromere divides during
Last Answer : In meiosis, the centromere divides during A. Interphase B. Anaphase - 1 C. Anaphase - II D. Metaphase - I
Description : How many cells form during meiosis I?
Description : What would be the results if crossing over did not happen during meiosis in humans?
Last Answer : There would be less genetic variation in humans
Description : What is the stages of meiosis during which chromatids are separated to opposite poles of the cell?
Description : What sperm is a formed during meiosis?
Description : What cell is created during meiosis?
Description : What happens during meiosis during anaphase 1?
Last Answer : The tetrads are pulled apart.
Description : The following cell division occurs during gametogenesis a. Mitosis b. Meiosis c. Both d. None of them
Last Answer : Both
Description : During cleavage, what is true about cells? (a) Nucleocytoplasmic ratio remains unchanged. (b) Size does not increase. (c) There is less consumption of oxygen. (d) The division is like meiosis.
Last Answer : b) Size does not increase.
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 : Which of the following laws best describes the statement: The members of an homologous (pron: ho-MOL-eh-gus) pair of genes are separated during meiosis (pron: my-O-sis) of reproductive cells so that ... law of independent assortment c) law of filial (pron: FILL-ee-al) generation d) law of sorting
Last Answer : ANSWER: A -- LAW OF SEGREGATION
Description : What happens to the chromosomes during telophase? -Biology
Last Answer : answer:
Description : What happens to the chromosomes during anaphase? -Biology
Description : What happens to the chromosomes during prophase? -Biology
Description : What happens to the chromosomes during metaphase? -Biology
Description : What structure is involved in moving chromosomes during mitosis? -Biology
Description : Homologous chromosomes segregate during -Biology
Description : In spermatogenesis, reduction of chromosomes occurs during conversion of:
Last Answer : In spermatogenesis, reduction of chromosomes occurs during conversion of: A. Primary ... sperms D. Secodnary spermatocytes to spermatids.
Description : $ Viruses are not an exception to all theory ! During mitosis the number of chromosomes is reduced to a half.
Last Answer : $ Viruses are not an exception to all theory ! During mitosis the number of chromosomes is reduced to a half ... wrong D. If both As and R are wrong.
Description : $ Hormones are the secretions to all theory. ! During mitosis the number of chromosomes is reduced to a half.
Last Answer : $ Hormones are the secretions to all theory. ! During mitosis the number of chromosomes is reduced to a half ... wrong 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 : Condensation of chromosomes and appearance of astral rays occur during:-
Last Answer : Condensation of chromosomes and appearance of astral rays occur during:- A. Prophase B. Metaphase C. Anaphase D. Telophase