Statement I: Exonulceases remove nucleotides from the ends of the DNA whereas, endonucleases make cuts at specific positions within the DNA.
Statement II: Restriction enzymes cut the strand of DNA a little away from the centre of the palindrome sites and leaves single overhanging stretches called sticky ends on each strand.
Text Solution
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Statement I: Correct — Exonucleases remove nucleotides from the ends of DNA, while endonucleases cut DNA within the molecule.
Statement II: Correct — Restriction enzymes such as EcoRI cut near the center of palindromic sequences, producing sticky ends (single-stranded overhangs).
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