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Question

What is the difference between DNA fingerprinting and Gel electrophoresis?


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Solution

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 fingerprintingGel 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.


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