Relationship between amino acid and protein is similar to one found between

Options

A. glucose and fructose
B. nucleotides and nucleic acid
C. nucleosides and nucleic acid
D. purines and pyrimidines

Answer

To solve the question regarding the relationship between amino acids and proteins, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Relationship**:
- Amino acids are the basic building blocks of proteins. When multiple amino acids link together through peptide bonds, they form a protein. This means that the relationship is one of a monomer (amino acid) to a polymer (protein).

2. **Analyzing the Options**:
- We need to find a similar relationship among the provided options:
- **Glucose and Fructose**: Both are types of carbohydrates, but they are not in a monomer-polymer relationship. Glucose is a monosaccharide, while fructose is another monosaccharide.
- **Nucleotides and Nucleic Acid**: Nucleotides are the building blocks (monomers) of nucleic acids (polymers like DNA and RNA). This is a monomer-polymer relationship.
- **Nucleosides and Nucleic Acid**: Nucleosides are not directly the building blocks of nucleic acids; they become nucleotides when a phosphate group is added.
- **Purines and Pyrimidines**: These are types of nitrogenous bases and do not represent a monomer-polymer relationship.

3. **Identifying the Correct Answer**:
- The only option that reflects a similar relationship to that of amino acids and proteins is **nucleotides and nucleic acid**. Just as amino acids combine to form proteins, nucleotides combine to form nucleic acids.

4. **Conclusion**:
- Therefore, the correct answer is **nucleotides and nucleic acid**.

### Final Answer:
The relationship between amino acids and proteins is similar to that found between **nucleotides and nucleic acid**.

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