Genetic Engineering

Gel electrophoresis enables scientists to

• separate DNA fragments.
• combine DNA fragments.
• count the genes in DNA.
• insert DNA in cells.

Which is used to cut DNA molecules at specific points?

• gel electrophoresis
• PCR analysis
• a restriction enzyme
• recombinant DNA

A molecule containing DNA from two different organisms is called

• a plasmid.
• a polyploid.
• a hybrid organism.
• recombinant DNA.

Any change or mistake in DNA replication can cause a ________  

• cancer cell 
  
• virus
• disease
  
• mutation

Humans with genetic diseases can have a gene inserted into their body using a virus. This is called:

• Gene therapy

• Cloning

• DNA fingerprinting

Which term refers to a farmer choosing the best corn from this year to plant next year?

• natural selection
• selective breeding
• genetic engineering
• genetic transformation

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

Which suspect is likely guilty?

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

What applications can gel electrophoresis be used for?

• Parental Testing
• Criminal Investigations
• Sequence Endangered Species DNA
• All of the above

Inserting a gene for bioluminescence (glowing) into fish is an example of...

• Genetic engineering

• Natural selection

• Artificial selection

• Selective breeding