Front

What is gel electrophoresis?

Back

A laboratory technique used to separate DNA, RNA, or proteins based on their size and charge.

Front

What is the purpose of gel electrophoresis?

Back

To separate DNA based on size.

Front

How does DNA move in gel electrophoresis?

Back

DNA is negatively charged and moves towards the positive electrode.

Front

What determines the distance DNA fragments travel in gel electrophoresis?

Back

The size of the DNA fragments; smaller fragments travel farther than larger ones.

Front

What is DNA fingerprinting?

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A technique used to identify individuals based on unique patterns in their DNA.

Front

What is the role of agarose gel in gel electrophoresis?

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Agarose gel acts as a medium through which DNA fragments can move, separating them by size.

Front

Why do larger DNA fragments appear closer to the wells in gel electrophoresis?

Back

Larger fragments move more slowly through the gel and therefore do not travel as far as smaller fragments.

Front

What is the significance of DNA profiling in forensic science?

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DNA profiling helps to identify individuals involved in a crime by comparing DNA samples.

Front

What is the charge of DNA?

Back

DNA has a negative charge due to its phosphate backbone.

Front

What is the first step in DNA fingerprinting?

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Extracting DNA from a sample.