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Telophase

If a cell has...

Question

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

A

is preparing to divide

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B

has completed division

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C

has reached the end of its life span

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D

has ceased to function

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Solution

The correct option is A is preparing to divide
A growing somatic cell undergoes a cell cycle that consist essentially of two periods interphase and mitotic phase. Interphase is the period during which cells prepare for cell division by synthesising RNA and protein (in G $_{1}$ and G $_{2}$ -phase) and replicating its DNA (in S-phase). Thus, if cell has twice as much DNA as in a normal functional cell, it means that the cell is preparing to divide.

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Q. If a cell possesses twice as much DNA as in the functional cell, the cell __________.

Q. Choose the correct answers from the alternatives given :
A particular cell has half as much DNA as some of the other cells in a mitotically active tissue. The cell in question could be in

Q. The DNA content of individual cells and the number of cells in each phase of a "cell cycle" can be determined using flow cytometry. Which of the following combinations of "phase of a cell cycle and its corresponding DNA content" can be considered normal?
(i) Diploid cells found in the

G_{0}

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(iv) Cells with twice the normal DNA content in the

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G_{0}

G_{1}

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(ii) Cells with twice the normal DNA content in the early M phase.
(iii) Cells with intermediate amounts of DNA in the S phase.
(iv) Cells with twice the normal DNA content in the

G_{2}

_{2}

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_{1}

, and the cell faces .......... condition.

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