Question
Biology Question on Structure of DNA and RNA
Which of the following is true for restriction enymes (RE).
A. RE belong to the class of nucleases.
B. Each RE cuts DNA at specific points.
C. Exonucleases remove nucleotides within the DNA while Endonucleases remove nucleotides from the end of DNA.
D. When cut with same RE, resultant DNA fragments have the same kind of 'sticky ends'.
E. Each RE recognizes a specific palindrome in the DNA.
Choose the most appropriate answer from the options given below:
A
A, C, D & E only
B
B, C, D & E only
C
A, B, D & E only
D
B, D & E only
Answer
A, B, D & E only
Explanation
Solution
The correct answer is (C) : A, B, D & E only.