NC EOC Review: DNA Fingerprinting & Gel Electrophoresis

Front

What is DNA extraction?

Back

The process of collecting DNA from the nucleus of a cell.

Front

What is the role of restriction enzymes in DNA analysis?

Back

To cut the DNA into fragments.

Front

In gel electrophoresis, where do lighter-weight DNA fragments migrate?

Back

To the bottom of the gel.

Front

What is gel electrophoresis?

Back

A lab technique that separates DNA molecules by size to analyze them.

Front

What is DNA fingerprinting?

Back

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

Front

What is the purpose of using a DNA ladder in gel electrophoresis?

Back

To provide a reference for estimating the size of DNA fragments.

Front

How does gel electrophoresis work?

Back

DNA fragments are placed in a gel and an electric current is applied, causing them to move based on size.

Front

What is the significance of the size of DNA fragments in forensic analysis?

Back

Smaller fragments move faster and further in gel electrophoresis, aiding in identification.

Front

What is the function of a loading dye in gel electrophoresis?

Back

To visualize the DNA samples and track their movement through the gel.

Front

What is the outcome of DNA fingerprinting?

Back

A unique pattern of DNA bands that can be compared between samples.