Question

Which component of DNA carries genetic information?

• A. Phosphate group
• B. Sugar backbone
• C. Sequence of nitrogenous bases
• D. Hydrogen bonds

Hint:

The backbone is identical everywhere. Look at what varies.

Answer 1

The Correct Option is C

Step 1: Think of a code:
A code needs a changing pattern. The backbone is always the same.

Step 2: Locate the pattern:
Only the bases vary along the chain, in the order A, T, G, C.

Step 3: Pick:
Option (C).

Final Answer:
Only the bases vary from place to place. \[ \boxed{C} \]