Question

With respect to DNA fragmentation
Statement A : Gel electrophoresis is an important processes.
Statement B : After staining with ethidium bromide it has to be exposed to U.V. light.

• A. Both A and B are correct statements
• B. Only A is correct and B is not correct
• C. Only A is correct
• D. Only B is correct

Answer 1

The correct option is A Both A and B are correct statements

• Gel electrophoresis helps in the separation of DNA, RNA, or proteins according to their molecular size.
• It forms a major part of applications of biotechnology like DNA fingerprinting where it is used to separate the loaded sample on the basis of their size.
• Ethidium bromide is the fluorescent material which is exposed to U.V light for fluorescence effect.
• It DNA tagged by it can easily be traced out on the transparent gel.
• So, the correct answer is option A.