Question:medium
Two among the three components of DNA are $\beta$-D-2-deoxyribose and a heterocyclic base. The third component is:
Two among the three components of DNA are $\beta$-D-2-deoxyribose and a heterocyclic base. The third component is:
Show Hint
The components of DNA are sugar, phosphate, and nitrogenous bases. Phosphoric acid plays a crucial role in connecting nucleotides to form the backbone of DNA.
Updated On: Feb 24, 2026
- Adenine
- Phosphoric acid
- Sulphuric acid
- Uracil
Show Solution
The Correct Option is B
Solution and Explanation
DNA comprises three elements: $\beta$-D-2-deoxyribose (a sugar), a nitrogenous base (adenine, thymine, cytosine, or guanine), and phosphoric acid, which creates the DNA backbone by bonding the sugars.
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