Gel Electrophoresis and Crime

What lab technique separates DNA molecules by size in order to analyze DNA?

• Gel Electrophoresis

• Fingerprinting

• Cloning

• DNA Extraction

DNA fingerprinting may be used to do which of the following?

• Identify gender

• Identify criminals

• Identify parents and offspring

• Identify genetic disorders

Tags

NGSS.HS-LS3-1

The process of collecting DNA from the nucleus of a cell is called:

• Gel electrophoresis

• DNA fingerprinting

• DNA extraction

• Transformation

Once DNA has been extracted from the nucleus of a cell, it is exposed to ______ ______ that act like biochemical scissors to cut the DNA.

• restriction enzymes

• gel agarose

• clotting factors

• electric shock

What is the role of restriction enzymes?

• To cut the DNA into fragments

• To dye the DNA

• To move the DNA fragments throughout the gel

• To remove DNA from the nucleus

The pieces of DNA that are seen in the DNA fingerprint are called:

• Genes

• Granules

• Fragments

• Composites

Gel electrophoresis separates fragments of DNA by:

• Size

• Genes

• Base pairs

• Electromagnetic charge

In a DNA fingerprint, shorter fragments can be found at the:

• Top

• Bottom

• Middle

• Front

Which suspect left the blood stain?

• Bob

• Sue

• John

• Lisa

Which suspect's DNA fingerprint matches that of the felon?

• S1

• S2

• S3

• None