method of breeding that allows only those individual organisms with desired characteristics to produce the next generation
hybridization
breeding technique that involves crossing dissimilar individuals to bring together the best traits of both organisms
inbreeding
continued breeding of individuals with similar characteristics to bring together the best traits of both organisms
genetic engineering
process of making changes in the DNA code of living organisms
restriction enzyme
enzyme that cuts DNA at a specific sequence of nucleotides
gel electrophoresis
procedure used to separate and analyze DNA fragments by placing a mixture of DNA fragments at one end of a porous gel and applying an electrical voltage to the gel
recombinant DNA
DNA produced by combining DNA from different sources
polymerase chain reaction (PCR)
technique that allows molecular biologists to make many copies of a particular gene
plasmid
small circular piece of DNA
genetic marker
gene that makes it possible to distinguish bacteria that carry a plasmid with foreign DNA from those that don't
transgenic
term used to refer to an organism that contains genes from other organisms
clone
member of a population of genetically identical cells produced from a single cell