OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Gel electrophoresis sorts DNA molecules on the basis of their..
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Ability to bind to mRNA
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Size
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Solubility in water.
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Solubility in the gel. Solubility in the gel.
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Explanation:
Detailed explanation-1: -Gel electrophoresis is a technique used to separate DNA fragments according to their size. DNA samples are loaded into wells (indentations) at one end of a gel, and an electric current is applied to pull them through the gel. DNA fragments are negatively charged, so they move towards the positive electrode.
Detailed explanation-2: -Agarose gel electrophoresis separates the molecules on the basis of molecular size of DNA. Small molecules migrate faster as compared to the larger ones.
Detailed explanation-3: -The exact sizes of separated DNA fragments can be determined by plotting the log of the molecular weight for the different bands of a DNA standard against the distance traveled by each band.
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