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Prophase

Condensation ...

Question

Condensation of chromosome with visible centromere occurs during _________.

A

G_{1} - p h a s e

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B

G_{2} - p h a s e

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C

S - p h a s e

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D

M - p h a s e

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Solution

The correct option is B $M - p h a s e$
In a cell cycle the condensation of chromosome with visible centromere occurs during M-phase.
Sequence in cell cycle is G₁, S, G₂, M. M-phase is of shortest duration of cell cycle.

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Similar questions

Q. The condensation of the chromosomes is maximal with visible centromeres at which phase of cell cycle ?

Q. G1-phase, S-phase, G2-phase, Karyokinesis, Cytokinesis

Q. Which one is CORRECT about s-phase (synthetic phase)?
I. It occurs between

G_{1}

G_{2}

II. It marks the period during which DNA replicates
III. At the end of this phase DNA is doubled but the number of chromosomes remains unchanged
IV As the DNA is doubled in this phase number of chromosomes is also doubled
V. Centrioles replicate in this phase

Q. Which one is CORRECT about s-phase (synthetic phase)?
I. It occurs between

G_{1}

G_{2}

II. It marks the period during which DNA replicates
III. At the end of this phase DNA is doubled but the number of chromosomes remains unchanged.
IV. As the DNA is doubled in this phase number of chromosomes is also doubled .
V. Centrioles replicate in this phase.

Q. During the study of mitosis in onion root tip cells, we found 16 chromosomes in each cell. Can you tell how many chromosomes will the cell have at G1 phase, after S phase, and after M phase? Also, what will be the DNA content p of the cells at G1, after S, and at G2, if the content after M phase is 2 C?

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