What is recombination? Mention its applications with reference to genetic engineering.

Explanation

### Step-by-Step Solution

**Step 1: Define Recombination**
Recombination refers to the process of forming recombinant DNA by combining foreign or alien DNA with vector DNA. The vector serves as a vehicle to carry the foreign DNA into a host cell.

**Step 2: Explain the Process of Recombination**
In the process of recombination, both the vector DNA and the foreign DNA are cut using restriction enzymes. A specific fragment of the foreign DNA is then introduced into the vector DNA. This combination results in a new DNA molecule known as recombinant DNA.

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