What is the difference between DNA fingerprinting and Gel electrophoresis?
Gel electrophoresis:
Gel electrophoresis is a technique used to separate DNA fragments according to their size.
DNA fingerprinting:
The process of comparing DNA from different sources to establish identity is called DNA fingerprinting.
DNA fingerprinting | Gel electrophoresis |
1. The process of comparing DNA from different sources to establish identity is called DNA fingerprinting. | 1. Gel electrophoresis is a technique used to separate DNA fragments according to their size. |
2. DNA fingerprinting material: The biological material used to determine a DNA profile includes blood, semen, saliva, urine, faeces, hair, teeth, bone, tissue, and cells. | 2. Gel electrophoresis components: 1) DNA is extracted. 2) Isolation and amplification of DNA. 3) DNA was added to the gel wells. 4) Electric current is applied to the gel. |
3. Principle: Short nucleotide repeats that vary in number from person to person but are inherited. | 3. Principle: Charged molecules move through a gel when an electric current is passed across it. |