NEET BIOLOGY

BIOTECHNOLOGY

APPLICATIONS OF BIOTECHNOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If a linear piece of DNA contains 3 recognition sites for a restriction enzyme. How many pieces will be produced when the restriction enzyme cuts the DNA?
A
2
B
3
C
4
D
5
E
6
Explanation: 

Detailed explanation-1: -On cleaving a circular DNA 3 fragments of DNA will be obtained as there are 3 recognition sites for restriction enzyme.

Detailed explanation-2: -Solution : If a linear DNA molecule is digested with a restriction enzyme having four recongnition sites, it will produce 5 fragments.

Detailed explanation-3: -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.

Detailed explanation-4: -If a linear DNA molecule is digested with a restriction enzyme at four recognition sites on the DNA, 5 fragments would be produced.

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