Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 3 PCB Single Correct MCQ
Published on: August 14, 2026

GAATTC is the recognition site for which of the following restriction enzyme (restriction endonuclease)?

A
Hind III
B
EcoRI
C
Bam HI
D
Hae III

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The correct answer is:
B

EcoRI is a restriction endonuclease enzyme that cleaves double helical DNA into fragments at specific locations. The sequence where the enzyme make a cut is G/AATTC which has a palindromic, complementary sequence of CTTAA/G (indicates phosphodiester bond that will be broken).

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