Gel Electrophoresis | Biotechnology Principles and Processes | Class 12 | Biology | In Hindi

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Chapter 11.3 - Gel Electrophoresis (Separation and Isolation of DNA Fragments) - Biotechnology Principles and Processes - Class 12th Biology

Biotechnology Principles and Processes

In this video we'll learn about - Gel Electrophoresis, its various aspects and how it affects you. This video continues the series, Biology Class 12 Chapter - Biotechnology Principles and Processes.

Biology Class 12

Chapter: Biotechnology Principles and Processes(Gel Electrophoresis)
Useful For: NCERT / CBSE / ICSE / NEET/ AIIMS / Medical Entrance Exams

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After the cutting of DNA by restriction enzymes, fragments of DNA are formed.

Separation of DNA fragments according to their size or length is done by a technique called gel electrophoresis developed by A. Tiselius in 1937.

Electrophoresis is a technique of separation of molecules such as DNA, RNA or protein on the basis of their size, under the influence of an electrical field.

Positively charged molecules move towards cathode (-ve), through a medium/matrix


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