Gels and Biotech

This laboratory procedure is known as

• CLONING

• gel electrophoresis

• chromatography

• use of a dichotomous key

What is a restriction enzyme?

• An enzyme that cuts DNA

• An enzyme that add to the DNA strand

• An enzyme that builds proteins

• An enzyme that breaks down lipids

In preparation for an electrophoresis procedure, enzymes are added to DNA in order to

• convert the DNA into gel

• cut the DNA into fragments

• change the color of the DNA

• produce longer sections of DNA

A student performed a gel electrophoresis experiment. The results are represented in the diagram

below. Compared to the fragments at the top of the gel, the fragments at the lower end are

• larger, and move slower

• larger, and move faster

• smaller, and move faster

• smaller, and move slower

Restriction enzymes are used to ___ DNA.

• glue together
• cut
• reconnect
• exchange

Which chemicals are used to cut DNA into fragments for a gel electrophoresis procedure?

• enzymes

• molecular bases

• hormones

• ATP molecules

Restriction Enzymes are isolated from....

• proteins

• bacteria

• viruses

• bacteriophages

Based on these results whose blood was found in the blood stain at the crime scene?

• Bob
• Sue
• John
• Lisa

Which suspect is likely guilty?

• Suspect #1
• Suspect #2
• Suspect #3

DNA fingerprinting works because

• Most genes are dominant
• All organisms contain RNA
• The most important genes are different among most people
• No two people, except identical twins, have exactly the same DNA