Genetic Engineering Quiz 1

Bacteria have two types of DNA: a bacterial chromosome and plasmids.

• True

• False

Restriction enzymes cut DNA at random points.

• True

• False

Sticky ends are formed when restriction enzymes make blunt cuts.

• True

• False

DNA ligases join the cut ends of DNA molecules.

• True

• False

Genetic engineering only occurs naturally in bacteria.

• True

• False

Which of the following is an enzyme used to cut DNA?

• Ligase

• Polymerase

• Restriction endonuclease

• Ribosome

What is the name of the enzyme that joins DNA fragments together?

• Polymerase

• Restriction enzyme

• Helicase

• Ligase

Plasmids are small, circular pieces of DNA found in:

• Plants

• Bacteria

• Viruses

• Animals

Which of the following is used as a vector in genetic engineering?

• Plasmid

• Ribosome

• Nucleus

• Chloroplast

What is the main goal of genetic engineering?

• To increase bacterial growth

• To transfer desirable genes into an organism

• To eliminate viruses

• To create identical organisms