Which molecular technique is used to separate DNA fragments by size?

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Question: Which molecular technique is used to separate DNA fragments by size?

Options:

Correct Answer: Gel electrophoresis

Solution:

Gel electrophoresis is used to separate DNA fragments based on their size, allowing for analysis and comparison.

Which molecular technique is used to separate DNA fragments by size?

Which molecular technique is used to separate DNA fragments by size?

Step 1: Understand that DNA is made up of small pieces called fragments.
Step 2: Know that these fragments can be of different sizes.
Step 3: Learn that gel electrophoresis is a technique used to separate these DNA fragments.
Step 4: In gel electrophoresis, a gel is made, and the DNA fragments are placed in it.
Step 5: An electric current is applied to the gel, causing the DNA fragments to move.
Step 6: Smaller DNA fragments move faster and travel further in the gel than larger ones.
Step 7: After the process, you can see the separated DNA fragments, which helps in analysis and comparison.

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