the process of selecting organisms with desired traits to be parents of the next generation.
ex: turkeys opp: plants
crossing two individuals that have similar characteristics.
ex: big turkey and strong turkey opp: same turkeys
crossing two genetically different individuals. ex: disease resistand and strong plants opp: same turkeys
an organism that has exactly the same genes as the organism from which it was originally produced.
ex: twins opp: different looking goats
genes from one organism are transferred into the DNA of another organism. ex:height opp: tall then short
inserting copies of a gene directly into a person's cells.
ex: replacing alleles opp: adding alleles
all the DNA in one cell of an organism
ex: DNA of one cell opp: chromosomes of a cell