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Given below are two statements: One is labeled Assertion(A) and the other is labeled Reason(R).
Assertion (A): Bacteria made ‘competent’ to take up DNA by treating them with a specific concentration of a divalent cation, such as calcium.
Reason (R) : Calcium ions increase the efficiency with which DNA enters the bacterium through pores in its cell wall.
In the light of the above statements, choose the correct answer from the options given below.

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Both (A) and (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Both (A) and (R) are true and the (R) is correct explanation of the (A)

answer is A.

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Detailed Solution

Bacterial cells are made competent to take up DNA by treating with specific concentration of divalent cations such as calcium.

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