Question

Given below are two statements:
Statement (I): DNA, RNA and proteins are micromolecules.
Statement (II): Nucleotide and amino acids are monomers of DNA/RNA and proteins, respectively. Choose the most appropriate answer from the options given below:

• A. Both Statement (I) and Statement (II) are correct.
• B. Both Statement (I) and Statement (II) are incorrect.
• C. Statement (I) is correct but Statement (II) is incorrect.
• D. Statement (I) is incorrect but Statement (II) is correct.

Hint:

Macromolecules are large polymers assembled from smaller monomers. Think "macro" = large, "mono" = single.

Answer 1

The Correct Option is D

Step 1: Recall macromolecules are large polymers of repeating monomers; micromolecules are single small units.
Step 2: DNA, RNA and proteins are polymers, so calling them micromolecules (Statement I) is wrong.
Step 3: Statement II correctly names nucleotides and amino acids as their respective monomers.
Step 4: Statement (I) is incorrect but Statement (II) is correct (Option 4).