Adenosine monophosphate is a

Options

A. nucleotide of RNA
B. nucleoside of RNA
C. nucleotide of DNA
D. nucleoside of DNA

Answer

To determine what adenosine monophosphate (AMP) is, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definitions**:
- **Nucleotide**: A nucleotide consists of three components: a nitrogenous base, a five-carbon sugar (which can be ribose or deoxyribose), and one or more phosphate groups.
- **Nucleoside**: A nucleoside consists of only two components: a nitrogenous base and a five-carbon sugar. It does not contain any phosphate groups.

2. **Identify the Components of AMP**:
- Adenosine monophosphate (AMP) is made up of:
- **Nitrogenous Base**: Adenine (which is a purine).
- **Sugar**: Ribose (which is a five-carbon sugar found in RNA).
- **Phosphate Group**: AMP contains one phosphate group.

3. **Classify AMP**:
- Since AMP contains a nitrogenous base (adenine), a ribose sugar, and a phosphate group, it meets the criteria for a nucleotide.
- Additionally, since the sugar is ribose, it indicates that AMP is a nucleotide of RNA.

4. **Conclusion**:
- Based on the components and their classification, adenosine monophosphate (AMP) is classified as a **nucleotide of RNA**.

### Final Answer:
Adenosine monophosphate is a **nucleotide of RNA**.

---