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  4. Sticky ends, observed in the DNA, are due to the action of a particular type of nucleases. Which of the following statement is correct regarding the sticky ends of the DNA strand?

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Q. Sticky ends, observed in the DNA, are due to the action of a particular type of nucleases. Which of the following statement is correct regarding the sticky ends of the DNA strand?

NTA AbhyasNTA Abhyas 2022

Solution:

Restriction endonucleases are a group of nucleases that break the phosphodiester bond in the DNA that result in a 'cut' in the DNA strand and separation. These enzymes cut the DNA at a particular site and may leave single stranded portions at the ends. These overhanging stretches of unpaired nucleotides are called sticky ends.