How is DNA fingerprinting done ? Name any two types of human samples which can be used for DNA fingerprinting. Explain the process sequentially.

Explanation

**Step-by-Step Solution for DNA Fingerprinting**

1. **Isolation of DNA**: The first step in DNA fingerprinting is to isolate DNA from the human sample. This can be done using various methods such as centrifugation or using chemical solutions to break down cell membranes and release DNA into the solution.

2. **Digesting DNA with Restriction Enzymes**: Once the DNA is isolated, it is treated with restriction enzymes, which act as molecular scissors. These enzymes cut the DNA at specific sequences, resulting in fragments of varying lengths.

3. **Separation of DNA Fragments**: The next step is to separate these DNA fragments using gel electrophoresis. In this technique, the DNA fragments are placed in a gel matrix and an electric current is applied. The negatively charged DNA moves towards the positive electrode, and smaller fragments move faster than larger ones, allowing for separation based on size.

...