Cell Cycle

IMPORTANT

Cell Cycle: Overview

This topic covers concepts, such as, Cell Cycle and Cell Division, Cell Cycle, Phases of Cell Cycle, Interphase, G1 Phase, S Phase, G2 Phase, M Phase, G0 Phase, Cell Division & Interkinesis etc.

Important Questions on Cell Cycle

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Cells in G0 phase of cell cycle

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Cell division is initiated by

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During which phase(s) of cell cycle amount of DNA in a cell remains at 4C level if the initial amount is denoted as 2C

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During interphase, RNA and proteins are synthesized in

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In which phase of the cell cycle, cytokinesis takes place.

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A bacterial culture was started with an inoculum of 10 cells. What will be the number of cells at the end of 10 cycles of division, assuming that every progeny cell undergoes division in each cycle?

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Assertion (A) : Chromosomes are inactive and not transcribed to messenger RNA in phase of apparent division

Reason (R): Cells remains metabolically active but no longer divide in quiescent stage

 

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Duplication of DNA can occur at which phase?

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If a cell has twice as much DNA as in a normal functional cell, it means that the cell:

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Which part of the cell divides first during cell division?

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It is said that the one cycle of cell division in human cells (eukaryotic cells) takes 24 hours. Which phase of the cycle, do you think occupies the maximum part of the cell cycle, whether it is M phase or interphase?

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Which of the following does not occur in the interphase of eukaryotic cell division?

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Maturation promoting factor (MPF) induces

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The phase of cell cycle during which ‘DNA polymerase’ is functionally active:

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Which phase comes in between the G1 and G2 phase of cell cycle?

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A biochemist measured the amount of DNA in cells growing in the laboratory and found the quantity of DNA in a cell doubled:

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The decision for cell division occurs in

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The correct sequence of different phases of cell cycle is

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G1, G2 and S phases are seen in which phase of cell cycle?

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Match the items in column I with those in column II and choose the correct answer:

Column I
(Phase of cell cycle)
Column II
(Event)
A. G0 stage 1. Synthesis of DNA and histone proteins.
B. G1 phase 2. Cell division has been arrested.
C. G2 phase 3. Interval between the end of mitosis and start of S phase.
D. S phase 4. The synthesis of new proteins and RNA to be used for mitosis.