Question

objectives for DNA fingerprinting​

Answer 1

Answer:

DNA fingerprinting is a technique used to identify and analyze the variations in various individuals at the level of DNA. It is based on variability and polymorphism in DNA sequences.

Application

(1) It is used in forensic science to identify potential crime suspects.

(2) It is used to establish paternity and family relationships.

(3) It is used to identify and protect the commercial varieties of crops and livestock.

(4) It is used to find out the evolutionary history of an organism and trace out the linkages between groups of various organisms.

Explanation:

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.

Application of DNA fingerprinting are:

• In forensic science to identify potential crime suspects.
• To establish paternity & family relationships.
• To identify & protect the commercial varieties of crops & livestock.