Fill in the blanks
A nucleotide consists of ______. ______ and ______ .

Explanation

**Step-by-Step Solution:**

1. **Understanding Nucleotide Structure**: A nucleotide is the basic building block of nucleic acids such as DNA and RNA. It is composed of three main components.

2. **Identifying the Components**:
- **Phosphate Group**: This is a molecule that contains phosphorus and oxygen. It is attached to the sugar component of the nucleotide.
- **Sugar**: In nucleotides, the sugar can either be ribose (in RNA) or deoxyribose (in DNA).
- **Nitrogenous Base**: This is a molecule that contains nitrogen and acts as a base. There are different types of nitrogenous bases: adenine (A), guanine (G), cytosine (C), and thymine (T) in DNA; and adenine (A), guanine (G), cytosine (C), and uracil (U) in RNA.
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