2022 Phase 2 Biotechnology: Principles and ProcessesRestriction enzymes and sticky ends Easy Question 44 of 132 in Biotechnology: Principles and Processes

When a particular restriction enzyme cuts strand of DNA, overhanging stretches or sticky ends are formed.

Reason: Some restriction enzymes cut the strand of DNA a little away from the centre of the palindromic site.
A Both A and R are true and R is the correct explanation of A
B Both A and R are true but R is NOT the correct explanation of A
C A is true but R is false
D A is false but R is true

The answer is A.

Solution

Both statements are correct and the reason explains the assertion. Sticky ends are produced by restriction enzymes that cut the DNA strand a little away from the centre of the palindromic site, but between the same two bases on the opposite strand.

Concept Restriction enzymes and sticky ends

Biotechnology: Principles and Processes in past papers

132 questions from this chapter have appeared across 26 exam years.