Question

Correct Statement:
Identify the correct scientific statement from the options below:

• A. Chargaff’s rule: \quad A + T = G + C
• B. DNA is a polymer of nucleotides
• C. Euchromatin is loosely connected
• D. DNA backbone is composed of nitrogenous bases

Hint:

\textbf{Tip:} DNA = Deoxyribonucleic Acid. It is a polymer made up of nucleotides, each containing a sugar, a phosphate, and a nitrogenous base.

Answer 1

The Correct Option is B

• Option A: Incorrect. Chargaff's rule correctly states A = T and G = C, but not that A + T = G + C.
• Option B: Correct. DNA is indeed made of repeating nucleotide units, forming a polymer.
• Option C: Incorrect. While euchromatin is loosely packed, this statement lacks completeness and clarity.
• Option D: Incorrect. The DNA backbone is actually composed of sugar-phosphate units, not nitrogenous bases.