Genetic Engineering

Gel electrophoresis enables scientists to

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

Genetic engineering has been used to produce

• medicines.
• food animals.
• improved crops.
• all of these.

Polymerase chain reaction is used to

• determine the sequence of DNA.
• make copies of a DNA sequence.
• selectively breed plants and animals.
• produce mutations in bacteria.

Which is used to cut DNA molecules at specific points?

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

During transformation, a cell

• is treated with radiation.
• has two genetically different parents.
• has foreign DNA inserted in its chromosome.
• has parents of different species.

Genes found on DNA contain the instructions for making  

• pyrimidines 
  

• proteins

• purines

Any change or mistake in DNA replication can cause a ________  

• cancer cell 
  
• virus
• disease
  
• mutation

simple ring of DNA from prokaryotes

• plasmid
• restriction enzymes
• recombinant DNA
• gene

DNA containing genes from a foreign donor

• plasmid
• restriction enzymes
• recombinant DNA
• gene

Bacteria containing DNA from a foreign donor

• plasmid

• restriction enzymes

• recombinant DNA

• Host Organism