What causes DNA fragments to have sticky ends?

Biology Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Biology Mcqsbiology-mcqs
Published
11 Apr 2022
Last updated
28 May 2026

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Explanation

Sticky ends on DNA fragments occur because of unpaired bases at the ends, which allow complementary base pairing. This characteristic is not caused by endonucleases, calcium ions, or methylation processes.

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