| A | B |
| selective breeding | the process of selecting a few organisms with desired traits to serve as parents of the next generation |
| inbreeding | the selective breeding method in which two individuals with identical or similar sets of alleles are crossed |
| hydridization | a selective breeding method in which two genetically different individuals are crossed |
| clone | an organism that is genitically identical to the organism from which it was produced |
| genetic engineering | the transfer of a gene from the DNA of one organism into another organism in order to produce an organism with desired traits |
| gene therapy | the insertion of working copies of a gene into the cells of a person with a genetic disorder in an attempt to correct the disorder |
| genome | all of the DNA in one cell of an organism |