Biotechnology Principles And Processes Question 37
Question: Which of the following is known as specific molecular scissors?
Options:
A) Ligase
B) Helicase
C) Restriction endonuclease
D) DNA polymerase
Show Answer
Answer:
Correct Answer: C
Solution:
[c] Restriction endonuclease are called “molecular scissors or biological scissors”.
They recognise and cut double stranded DNA at specific points and are called palindromic sequences.
Palindromic sequence are the ones which read same on both the strand in 5’ $ \to $ 3’ direction.
Same is true about 3’ $ \to $ 5’ direction.
5’??G’AATTC?? 3’ 3’ ?? CTTAAG ?? 5'
BETA
