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Restriction Enzyme

How many frag...

Question

How many fragments will be generated on the digestion of a closed circular DNA molecule with a restriction enzyme having six recognition sites on the DNA?

A

5

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B

7

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C

6

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D

9

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Solution

The correct option is C 6
When a closed circular DNA molecule is digested with a restriction enzyme having six recognition sites, it will produce 6 DNA fragments.

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Similar questions

Q. How many fragments will be generated in total upon digestion of a closed circular DNA molecule and liner DNA molecule with a same restriction enzyme having six recognition sites on both DNA molecules?

Q. How many fragments will be generated if you digest a linear DNA molecule with a restriction enzyme having four recognition sites on the DNA?

Q. How many of the following statements are correct?
I. If a linear DNA molecule is digested with a restriction enzyme at four recognition sites, 4 fragments would be produced.
II. If a closed circular DNA molecule is digested with a restriction enzyme at six recognition sites, 6 fragments would be produced.
III. If a linear DNA molecule is digested with a restriction enzyme at four recognition sites on the DNA, 5 fragments would be produced.
IV. If a closed circular DNA molecule is digested with a restriction enzyme at six recognition sites, 7 fragments would be produced.

Q. How many linear DNA fragments will be produced when a circular plasmid is digested with a restriction enzyme having 3 sites?

Q. Eco RI restriction endonuclease requires a 6 bp sequence for recognition and cleavage. In a 10kb DNA fragment how many probable cleavage sites are present for this enzyme?

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