Morphology of Chromosomes can be best studied at (1) Interphase (2) Prophase (3) Metaphase (4) Zygotene

Morphology of Chromosomes can be best studied at (1) Interphase (2) Prophase (3) Metaphase (4) Zygotene
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Metaphase
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Morphology of Chromosomes can be best studied at - (1) Interphase (2) Prophase (3) Metaphase (4) Zygotene

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.

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

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))

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

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

Assertion :- Morphology of chromosomes is most studied during metaphase of cell division. Reason :- Complete disintegration of nuclear envelope marks

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.

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

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)

The chromatids become visible in a. interphase b. prophase c. anaphase d. metaphase

Description : The chromatids become visible in a. interphase b. prophase c. anaphase d. metaphase

Last Answer : prophase

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-sister chromatids of homologous chromosomes at Pachytene stage of prophase I. (c) Non-sister chromatids of homologous chromosomes at Zygotene stage of prophase I. (d) Non-sister chromatids of non-homologous chromosomes at Pachytene stage of prophase I.

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.

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) Terminalisation of chiasmata C. Diakinesis (iii) Crossing-over takes place D. Zygotene (iv) Chromosomes align at equatorial plate (a) A-(iii), B-(iv), C-(ii), D-(i) (b) A-(i), B-(iv), C-(ii), D-(iii) (c) A-(ii), B-(iv), C-(iii), D-(i) (d) A-(iv), B-(iii), C-(ii), D-(i)

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)

Synapsis and crossing over of chromosomes occurs i which phases of meiosis? a) Interphase b) Prophase c) Meterphase d) Teleophase

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

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

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

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) Golgi complex and endoplasmic reticulum are still visible at the end of prophase. (d) Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase.

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.

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 separate. (b) Metaphase - Chromosomes moved to spindle equator, chromosomes made up of two sister chromatids. (c) Anaphase - Centromeres split and chromatids separate and start moving away. (d) Late prophase - Chromosomes move to spindle equator.

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.

The period between active cell divisions in called a. anaphase b. metaphase c. interphase d. telephase

Description : The period between active cell divisions in called a. anaphase b. metaphase c. interphase d. telephase

Last Answer : interphase

What is the difference between a prophase and a metaphase?

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.

Colchicines prevent the spindle formation during: (a) Prophase (b) Metaphase (c) Anaphase (d) Telophase

Description : Colchicines prevent the spindle formation during: (a) Prophase (b) Metaphase (c) Anaphase (d) Telophase

Last Answer : Ans. ((b))

Azides and cyanide inhibit: (a) Metaphase (b) Prophase (c) Anaphase (d) Telophase

Description : Azides and cyanide inhibit: (a) Metaphase (b) Prophase (c) Anaphase (d) Telophase

Last Answer : Ans. ((b))

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

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)

. The stage in which each centromere divides is called a. Prophase b. Metaphase c. anaphase d. telophase

Description : . The stage in which each centromere divides is called a. Prophase b. Metaphase c. anaphase d. telophase

Last Answer : anaphase

The period of cell division when the nuclear envelop and nucleolus totally disappear is called a. Prophase b. Metaphase c. anaphase d. telophase

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

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

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

During gamete formation, the enzyme recombinase participates during (a) metaphase I (b) anaphase II (c) prophase I (d) prophase II

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

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

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

During mitosis, ER and nucleolus begin to disappear at (a) late prophase (b) early metaphase (c) late metaphase (d) early prophase.

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

During gamete formation, the enzyme recombinase participates during (1) Prophase-II (2) Metaphase-I (3) Anaphase-II (4) Prophase-I

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

During meiosis I, the chromosomes start pairing at (a) zygotene (b) pachytene (c) diplotene (d) leptotene.

Description : During meiosis I, the chromosomes start pairing at (a) zygotene (b) pachytene (c) diplotene (d) leptotene.

Last Answer : (a) zygotene

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 separate but chromatids move towards opposite poles (v) Pachytene (a) A-(i), B-(ii), C-(v), D-(iv) (b) A-(ii), B-(iii), C-(iv), D-(v) (c) A-(ii), B-(i), C-(iii), D-(iv) (d) A-(ii), B-(iii), C-(v), D-(iv)

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)

The stage during which separation of the paired homologous chromosomes begins is (a) pachytene (b) diplotene (c) diakinesis (d) zygotene.

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

The stage during which separation of the paired homologous chromosomes begins is (1) Pachytene (2) Diplotene (3) Diakinesis (4) Zygotene

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

The chromosome morphology is best studied during

Description : The chromosome morphology is best studied during

Last Answer : The chromosome morphology is best studied during A. Prophase B. Metaphase C. Interphase D. Anaphase

What happens to the chromosomes during prophase? -Biology

Description : What happens to the chromosomes during prophase? -Biology

Last Answer : answer:

A cell examined during prophase of cell cycle contained 100 units of DNA and 50 chromosomes. What would be the number of DNA and chromosome in anaphas

Description : A cell examined during prophase of cell cycle contained 100 units of DNA and 50 chromosomes. What would be the number of DNA and chromosome in anaphas

Last Answer : A cell examined during prophase of cell cycle contained 100 units of DNA and 50 chromosomes. What ... & 100 chromosomes D. 50 DNA & 25 chromosomes

What happens to the chromosomes during metaphase? -Biology

Description : What happens to the chromosomes during metaphase? -Biology

Last Answer : answer:

A cell has 46 chromosomes at each pole in mitotic telophase. In tis division the number of chromatids at the metaphase was :-

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

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

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

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

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

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 chromosomes and same number of chromatids (d) same number of chromosomes and half number of chromatids.

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.

At metaphase, chromosomes are attached to the spindle fibres by their (a) satellites (b) secondary constrictions (c) kinetochores (d) centromeres.

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

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.

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

If Mendel had studied the seven traits using a plant with 12 chromosomes instead of 14, in what way would his interpretation have been different? (a) He would not have discovered the law of independent assortment. (b) He would have discovered sex linkage. (c) He could have mapped the chromosome. (d) He would have discovered blending or incomplete dominance.

Description : If Mendel had studied the seven traits using a plant with 12 chromosomes instead of 14, in what way would his interpretation have been different? (a) He would not have discovered the law of ... c) He could have mapped the chromosome. (d) He would have discovered blending or incomplete dominance.

Last Answer : He would not have discovered the law of

The genes controlling the seven pea characters studied by Mendel are now known to be located on how many different chromosomes? (a) Seven (b) Six (c) Five (d) Four

Description : The genes controlling the seven pea characters studied by Mendel are now known to be located on how many different chromosomes? (a) Seven (b) Six (c) Five (d) Four

Last Answer : Four

Assertion :- Zygotene is charactersed by formation of synaptonemal complex . Reason :- Synoptonemal complex helps in synapsis of non homologous chromo

Description : Assertion :- Zygotene is charactersed by formation of synaptonemal complex . Reason :- Synoptonemal complex helps in synapsis of non homologous chromo

Last Answer : Assertion :- Zygotene is charactersed by formation of synaptonemal complex . Reason :- Synoptonemal complex ... If both Assertion & Reason are false.

Match the columns-I with column-II and select the correct answer :- `{:(" Column-I"," Column-II"),("(A)Pachytene","(i)Bouqute stage"),("(B)Zygotene","

Description : Match the columns-I with column-II and select the correct answer :- `{:(" Column-I"," Column-II"),("(A)Pachytene","(i)Bouqute stage"),("(B)Zygotene","

Last Answer : Match the columns-I with column-II and select the correct answer :- `{:(" Column-I"," Column-II"),("(A)Pachytene", ... D. A-ii, B-iii, C-iv, D-i, E-v

Crossing-over occurs during (1) Leptotene (2) Zygotene (3) Path ene (4) Diplotene

Description : Crossing-over occurs during (1) Leptotene (2) Zygotene (3) Path ene (4) Diplotene

Last Answer : (3) Path ene Explanation: Chromosomal crossover (or crossing over) is the exchange of genetic material between homologous chromosomes that results in recombinant chromosomes. It is one of the ... recombination, which occurs during prophase I of meiosis (pachytene) during a process called synapsis.

Segregation of Mendelian factor (Aa) occurs during (a) diplotene (b) anaphase I (c) zygotene/pachytene (d) anaphase II.

Description : Segregation of Mendelian factor (Aa) occurs during (a) diplotene (b) anaphase I (c) zygotene/pachytene (d) anaphase II.

Last Answer : b) anaphase I

The enzyme recombinase is required at which stage of meiosis? (a) Pachytene (b) Zygotene (c) Diplotene (d) Diakinesis

Description : The enzyme recombinase is required at which stage of meiosis? (a) Pachytene (b) Zygotene (c) Diplotene (d) Diakinesis

Last Answer : (a) Pachytene

In meiosis crossing over is initiated at (a) zygotene (b) diplotene (c) pachytene (d) leptotene.

Description : In meiosis crossing over is initiated at (a) zygotene (b) diplotene (c) pachytene (d) leptotene.

Last Answer : (c) (ii), (i), (iv), (iii)

Match the following with respect to meiosis. (A) Zygotene (i) Terminalization (B) Pachytene (ii) Chiasmata (C) Diplotene (iii)Crossing over (D) Diakinesis (iv) Synapsis

Description : Match the following with respect to meiosis. (A) Zygotene (i) Terminalization (B) Pachytene (ii) Chiasmata (C) Diplotene (iii)Crossing over (D) Diakinesis (iv) Synapsis

Last Answer : (b) (iv) (iii) (ii) (i)

Dissolution of the synaptonemal complex occurs during (a) pachytene (b) zygotene (c) diplotene (d) leptotene

Description : Dissolution of the synaptonemal complex occurs during (a) pachytene (b) zygotene (c) diplotene (d) leptotene

Last Answer : (c) diplotene

Crossing-over occurs during (1) Leptotene (2) Zygotene (3) Pachytene (4) Diplotene

Description : Crossing-over occurs during (1) Leptotene (2) Zygotene (3) Pachytene (4) Diplotene

Last Answer : Pachytene

What important events occur in the cell cycle during interphase? -Biology

Description : What important events occur in the cell cycle during interphase? -Biology

Last Answer : answer: