Question

Two among the three components of DNA are $\beta$-D-2-deoxyribose and a heterocyclic base. The third component is:

• A. Adenine
• B. Phosphoric acid
• C. Sulphuric acid
• D. Uracil

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.

Answer 1

The Correct Option is B

The three components of DNA are $\beta$-D-2-deoxyribose (a sugar), a heterocyclic base (either adenine, thymine, cytosine, or guanine), and phosphoric acid, which forms the backbone of the DNA structure by linking the sugars together.