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Q.

Given below are two statements: One is labelled Assertion(A) and other is labelled Reason(R).

Assertion(A) : Semi-conservative method of DNA replication was experimentally proved by Watson & Crick. 
Reason (R) : The experimental proof was first shown in Escherichia coli.

In the light of above statements, choose the correct answer from the options given below.

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a

Both (A) and (R) are correct, (R) explains (A)

b

Both (A) and (R) are correct (R) does not explain (A)

c

(A) is correct but (R) is false

d

(A) is incorrect but (R) is correct

answer is D.

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Detailed Solution

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 A is false. Semiconservative method of DNA replication was experimentally proved by Matthew Meselson and Franklin Stahl.

R is true. The experimental proof of semi-conservative replication was first shown in Escherichia coli.

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