What is the function of ligase?

Explanation

**Step-by-Step Solution:**

1. **Definition of Ligase**: Ligase is an enzyme that plays a crucial role in molecular biology. It is responsible for catalyzing the joining of two large molecules.

2. **Function of Ligase**: The primary function of ligase is to facilitate the joining of two large molecules by forming chemical bonds between them. This process is essential in various biological processes, including DNA and RNA synthesis.

3. **Examples of Ligase**:
- **DNA Ligase**: This enzyme specifically catalyzes the joining of DNA fragments. It is vital during DNA replication and repair, where it seals nicks in the sugar-phosphate backbone of DNA strands.
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