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.

Subtopic:  Intro to Cell Cycle & Interphase |
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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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Which of the following is not a characteristic of meiosis?
(1) It involves two stages of DNA replication one before meiosis-I and another before meiosis-II

(2) It involves recombination and crossing over

(3) Sister chromatids separate during anaphase- II

(4) Nuclear membrane disappears during prophase.

Subtopic:  Cell Cycle: Meiosis I |
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Microtubule depolymerizing drug such as colchicine is expected to 

(1) inhibit spindle formation during mitosis 

(2) inhibit cytokinesis

(3) allow mitosis beyond metaphase

(4) induce formation of multiple contractile

Subtopic:  Cell Division: Mitosis (Cytokinesis) |
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