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Assertion (A) : The cell cycle must be controlled.

Reason (R) : Damaged or compromised cells cannot divide.

Option: 1

If both assertion and reason are true and the reason is the correct explanation of the assertion.


Option: 2

If both assertion and reason are true but reason is not the correct explanation of the assertion.


Option: 3

 If assertion is true but reason is false.


Option: 4

If both assertion and reason are false.


Answers (1)

best_answer

A. The cell cycle is the orderly, sequential process by which a cell duplicates itself. This process is tightly regulated to guarantee that the DNA of a dividing cell is accurately duplicated, that any DNA errors are corrected, and that each daughter cell obtains a complete set of chromosomes. Hence assertion is true. 

The p53 protein normally assists in cell suicide (also known as apoptosis) when a cell's DNA is damaged. Hence reason is true. Therefore option A is correct.

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