A nucleotide consists of a ....................... ,a ...................... and a nitrogen base.

Explanation

To answer the question "A nucleotide consists of a ....................... ,a ...................... and a nitrogen base," we need to identify the components that make up a nucleotide.

### Step-by-Step Solution:

1. **Identify the Components of a Nucleotide**:
A nucleotide is the basic building block of nucleic acids like DNA and RNA. It consists of three main components:
- A sugar
- A phosphate group
...