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Assertion (A) : For sequencing, the total DNA from a cell is isolated and converted into random fragments.Reason (R) : DNA is a very long polymer.(a) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).(b) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).(c) Assertion (A) is true, but Reason (R) is false.(d) Assertion (A) is false, but Reason (R) is true

Question

Assertion (A) : For sequencing, the total DNA from a cell is isolated and converted into random fragments.Reason (R) : DNA is a very long polymer.(a) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).(b) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).(c) Assertion (A) is true, but Reason (R) is false.(d) Assertion (A) is false, but Reason (R) is true

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Solution

(b) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).

While it is true that for sequencing, the total DNA from a cell is isolated and converted into random fragments (Assertion A), and it is also true that DNA is a very long polymer (Reason R), the length of the DNA polymer is not the reason why it is broken into fragments for sequencing. The DNA is broken into fragments for sequencing because it makes the sequencing process more manageable and accurate, not specifically because DNA is a long polymer.

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