LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

MOLECULAR BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is another name for restriction enzymes?
A
restriction endonucleases
B
DNA polymerase
C
ligase
D
ligase
Explanation: 

Detailed explanation-1: -’Restriction enzyme’ and ‘restriction endonuclease’ should be regarded as synonymous and the abbreviation REase (or in some cases, R) is preferred. However, the abbreviation ENase, which has been used extensively, may also be used.

Detailed explanation-2: -Restriction endonucleases are named from the fact that they stop bacteriophages from multiplying by recognizing and cutting DNA at specified locations. Every endonuclease looks for the palindromic recognition sequence throughout the complete DNA sequence.

Detailed explanation-3: –EcoRI and smaI are the two examples of restriction enzymes.

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