A sequence of three Nitrogen base of RNA can function as :-

Options

A. Gene
B. Nucleoside
C. Codon
D. Amino acid

Answer

To solve the question "A sequence of three Nitrogen bases of RNA can function as:", we need to analyze the options provided and understand the role of RNA in protein synthesis.

### Step-by-Step Solution:

1. **Understanding RNA Structure**: RNA (Ribonucleic Acid) is made up of nucleotides, each consisting of a nitrogenous base (adenine, uracil, cytosine, or guanine), a sugar molecule (ribose), and a phosphate group.

2. **Identifying the Sequence of Bases**: The question specifies a sequence of three nitrogen bases in RNA. This sequence is crucial in the process of translation, where RNA is used to synthesize proteins.

3. **Defining Codon**: A codon is a sequence of three nitrogenous bases in RNA that corresponds to a specific amino acid or a stop signal during protein synthesis. For example, the codon AUG codes for the amino acid methionine and also serves as a start signal for translation.

4. **Analyzing the Options**:
- **Gene**: A gene is a segment of DNA that codes for a trait or protein, not a sequence of RNA bases.
- **Nucleoside**: A nucleoside consists of a sugar and a nitrogenous base but does not include the phosphate group. It is not related to a sequence of three bases.
- **Codon**: This is the correct term for a sequence of three nitrogen bases in RNA that codes for an amino acid.
- **Amino Acids**: These are the building blocks of proteins, but they are not sequences of RNA bases.

5. **Conclusion**: The correct answer is "codon" because a sequence of three nitrogen bases in RNA directly corresponds to a specific amino acid during the process of translation.

### Final Answer:
A sequence of three nitrogen bases of RNA can function as a **codon**.

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