This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Basics of DNA, Subject name: Biochemistry
Function of endonucleases:- 
Select and explain. 
A. Cut DNA at specific DNA sequences, B. Enhancers, C. To find out antibiotic resistances, D. To point out the coding regions
A: Cut DNA at specific DNA sequences
Answer: A: Cut DNA at specific DNA sequences 
Explanation: Endonuclease Exonuclease Cut in between the DNA sequence Cut from the sides either from 5' or from 3' side Cut ds DNA Cut ss & ds DNA