Description : The complex formed by a pair of synapsed homologous chromosomes is called
Last Answer : The complex formed by a pair of synapsed homologous chromosomes is called A. Axoneme B. Equatorial plate C. Kinetochore D. Bivalent
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 : 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 : 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 : The middle stage in which chromosomes are arranged in equatorial plate
Last Answer : Ans. Metaphase
Description : When paternal and maternal chromosomes change their materials with each other in cell division this event is called (a) bivalent-forming (b) dyad-forming (c) synapsis (d) crossing-over.
Last Answer : (d) crossing-over.
Description : Why do homologous chromosomes pair up? -Biology
Last Answer : answer:
Description : What happens to each pair of duplicated homologous chromosomes during meiosis 1?
Last Answer : Need answer
Description : What forms to hold bivalent together so that DNA can duplicate chromosomes?
Description : Spindle fibre unite with which structure of chromosomes? (a) Chromocentre (b) Chromomere (c) Kinetochore (d) Centriole
Last Answer : c) Kinetochore
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 : .In salivary gland chromosomes/polytene chromosomes, pairing is (a) absent (b) occasional (c) formed between non-homologous chromosomes (d) formed between homologous chromosomes.
Last Answer : (d) formed between homologous chromosomes.
Description : Pairing of homologous chromosomes is called :-
Last Answer : Pairing of homologous chromosomes is called :- A. Disjunction B. Synapsis C. Segregation D. Polyteny
Description : Separation of homologous chromosomes during Anaphase -I is called:-
Last Answer : Separation of homologous chromosomes during Anaphase -I is called:- A. Synapsis B. Disjunction C. Nondisjunction D. Crossing over
Description : Complete the sentence. The alternative forms of gene at the same locus on homologous chromosomes are called what?
Last Answer : ANSWER: ALLELES
Description : A step in the process of mitosis where the chromosomes come to the equatorial region and look thicker and shorter .
Last Answer : Answer : Metaphase is a step in the process of mitosis where the chromosomes come to the equatorial region and look thicker and shorter.
Description : What are homologous chromosomes? -Biology
Description : When do homologous chromosomes separate? -Biology
Description : When homologous chromosomes crossover what occurs? -Biology
Description : Why are homologous chromosomes not identical? -Biology
Description : Homologous chromosomes versus sister chromatids. -Biology
Description : Are homologous chromosomes genetically identical? -Biology
Description : Homologous chromosomes segregate during -Biology
Description : Homologous chromosomes are pulled apart in -Biology
Description : Identify the meiotic sage in which the homologous chromosomes separate while the sister chromatids remain associated at their centrometres. Or In whic
Last Answer : Identify the meiotic sage in which the homologous chromosomes separate while the sister chromatids remain ... II C. Metaphase I D. Metaphase II
Description : What stage are there homologous chromosomes lined up down the middle of the cell?
Last Answer : Metaphase 1
Description : What random distribution of homologous chromosomes during meiosis?
Last Answer : What is the answer ?
Description : What paired set of homologous chromosomes each composed of two sister chromatids?
Description : In which stage of meiosis do homologous chromosomes separate?
Description : What and the difference between homologous chromosomes and sister chromatids?
Last Answer : Homologous chromosomes is a pair made of a paternal and maternalchromosomes. But sister chromatid is either pairs of paternal ormaternal chromosomes
Description : Which of these statements about homologous autosomal chromosomes is true?
Last Answer : each of a homologous pair is the same size and shape as itspartner
Description : Exchange of chromatin between non-sister chromatids of homologous chromosomes is known as
Last Answer : Ans. Crossing over
Description : How many pairs of homologous chromosomes do humans have?
Last Answer : Ans. 23 (II) Plant Breeding
Description : What are homologous chromosomes ?
Last Answer : Which are the human cells that do not have homologous chromosomes? Chromosomes contain genes (genetic information in the form of nucleotide sequences) that command the protein synthesis thus ... chromosomes are the gametes since during meiosis the homologous chromosomes are separated.
Description : Independent assortment of genes does not take place when (a) genes are located on homologous chromosomes (b) genes are linked and located on same chromosome (c) genes are located on non-homogenous chromosome (d) all of these.
Last Answer : genes are linked and located on same chromosome
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 : Synapsis occurs between (a) mRNA and ribosomes (b) spindle fibres and centromere (c) two homologous chromosomes (d) a male and a female gamete.
Last Answer : (c) two homologous chromosomes
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 : The stage during which separation of the paired homologous chromosomes begins is (a) pachytene (b) diplotene (c) diakinesis (d) zygotene.
Last Answer : (b) diplotene
Description : Crossing over takes place between which chromatids and in which stage of the cell cycle ? (a) Non-sister chromatids of non-homologous chromosomes at Zygotene stage of prophase I. (b) Non- ... prophase I. (d) Non-sister chromatids of non-homologous chromosomes at Pachytene stage of prophase I.
Last Answer : (b) Non-sister chromatids of homologous chromosomes at Pachytene stage of prophase I.
Description : Which of the following type of recombination does not require homologous sequences and isutilized by mobile genetic elements that move about chromosomes? A.Mutagenicrecombimation B.Site-specific recombination C.Replicative recombination D.General recombination
Last Answer : C.Replicative recombination
Description : Recombination of virus genomes occurs A- by transduction B- by transcription C- simultaneous infection of a host cell by two viruses with homologous chromosomes D- by transformation
Last Answer : simultaneous infection of a host cell by two viruses with homologous chromosomes
Description : Which of the following type of recombination does not require homologous sequences and isimportant for the integration of viral genomes into bacterial chromosomes? A- Mutagenic recombimation B- Site-specific recombination C- Replicative recombination D- General recombination
Last Answer : Site-specific recombination
Description : The stage during which separation of the paired homologous chromosomes begins is (1) Pachytene (2) Diplotene (3) Diakinesis (4) Zygotene
Last Answer : (2) Diplotene
Description : Gametes have a. homologous chromosomes. b. twice the number of chromosomes found in body cells. c. two sets of chromosomes. d. one allele for each gene.
Last Answer : d. one allele for each gene.
Description : Define equatorial plate. -Biology
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 : Slipping of chiasmata towards the ends of bivalent is called :-
Last Answer : Slipping of chiasmata towards the ends of bivalent is called :- A. Terminalisation B. Diakinesis C. Interkinesis D. Heteropycnosis