Q. Consider the following statements. (A) The polymer of DNA contains a free phosphate moiety at 3’ end of deoxyribose sugar. (B) The backbone of DNA is formed by both sugar and phosphates. Select the correct option.
A) A is true, B is false
B) Both A and B are false
C) A is false, B is true
D) Both A and B are true
Explanation
The polynucleotide chain of DNA contains free phosphate moiety at 5’ end of deoxyribose sugar while the other 3’ end contains hydroxyl group.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.