Bio Chapter 9

Some enzymes, called _____, are like molecular "scissors" that cut apart DNA.

• gel electrophoresis

• restriction enzymes

• restriction map

What is the picture below showing?

• gel electrophoresis

• restriction enzymes

• restriction map

What is a technique that produces millions of copies of a specific DNA sequence in just a few hours?

• polymerase chain reaction

• gel electrophoresis

• primer

What is the end result of PCR (polymerase chain reaction)?

• separates DNA

• many copies of a piece of DNA

• adds nucleotides

In polymerase chain reaction (PCR), which of the following acts as the starting point for new DNA strands?

• enzymes

• primers

• plasmids

What shows parts of an individual's DNA that can be used to identify a person?

• DNA fingerprint

• genomics

• DNA microarrays

What is a clone?

• a mouse that has had some of its genes "turned off"

• a ring of bacterial DNA with foreign DNA inserted

• a genetically identical copy of a gene or organism

Genetic engineering is possible because all organisms are based on the same

• proteins.

• genetic code.

• DNA copies.

The purpose of genetic engineering is to

• give organisms new traits.

• reduce Earth's biodiversity.

• develop safer pesticides.

An organism with recombinant DNA is called

• transgenic

• genomics.

• proteomics.