Question

what is the principle of DNA fingerprinting​

Answer 1

Answer:

The principle of DNA fingerprinting is the difference in Number of VNTR's (Variable number of tandem repeats) due to different reasons such as insertion, deletion or mutation in the base pairs.

Answer 2

What is DNA Fingerprinting?

=> A chemical test that shows the genetic makeup of a person or other living things.

Steps of DNA Fingerprint (Southern Blotting techniques):

1. DNA extract from cell.
2. Cutting DNA by restrictions Endonuclease.
3. Separate DNA fragments on Electrophoresis gel.
4. Transfer DNA onto paper.
5. Adding the radioactive probe.
6. Setting up the X-ray film.