During gamete formation, the enzyme recombinase participates during

1. Metaphase-I

2. Anaphase-II

3. Prophase-I

4. Prophase-II

Subtopic:  Cell Cycle: Meiosis I |
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Given below is the representation of a certain event at a particular stage of a type of cell division. Which is this stage?

1. Prophase-I during meiosis

2. Prophase-II during meiosis

3. Prophase of mitosis

4. Both prophase and metaphase of mitosis

Subtopic:  Cell Cycle: Meiosis I |
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Select the correct option with respect to mitosis.

1. Chromatids start moving towards opposite poles in telophase

2. Golgi complex and endoplasmic reticulum are still visible at the end of prophase

3. Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase

4. Chromatids separate but remains in the centre of the cell in anaphase

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
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Given below is a schematic break-up of the phases/stages of the cell cycle

Which one of the following is the correct indication of the stage/phase in the cell cycle?

1. B-Metaphase

2. C-Karyokinesis

3. D-Synthesis phase

4. A-Cytokinesis 

Subtopic:  Intro to Cell Cycle & Interphase |
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The drug colchicines, used to obtain polyploidy cells, acts on the cytoskeletal structures of

the plant cells called

1. microtubules

2. actin filaments

3. intermediate filaments

4. all of the above.

Subtopic:  Cell Division: Mitosis (Cytokinesis) |
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Astral rays arise from 

1. centriole 

2. cytoplasm

3. chromatid

4. centromere.

Subtopic:  Cell Division: Mitosis (Karyokinesis) |
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Number of mitotic division required in a cell of root tip for formation of 128 cells is

1. 12

2. 3

3. 7

4. 6

Subtopic:  Cell Division: Mitosis (Karyokinesis) | Cell Division: Mitosis (Cytokinesis) |
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Barr body is found in the cytoplasm during

1. interphase in cell of female mammal.

2. interphase in cell of male mammal.

3. prophase in cell of female mammal.

4. prophase in cell of male mammal.

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When synapsis is complete all along the chromosome, the cell is said to have entered a stage called
(1) Zygotene

(2) pachytene

(3) diplotene

(4) diakinesis.

Subtopic:  Cell Cycle: Meiosis I |
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Many cells function properly and divide mitotically even though they do not have 

(1) Plasma membrane

(2) Cytoskeleton

(3) Mitochondria

(4) Plastids

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