This is an old revision of the document!
Tester: a strainplugin-autotooltip__default plugin-autotooltip_bigStrain or line: refers to a pool or colony of individuals or cultured cells of a desired genotype or phenotype that is mostly homogeneous and can be bred and/or produced in perpetuity for research or commercial purposes. “Strain” tends to be used more for microorganisms and that is homozygousplugin-autotooltip__default plugin-autotooltip_bigHomozygous: a state for a diploid organism wherein the two alleles for a gene are identical to each other. mutantplugin-autotooltip__default plugin-autotooltip_bigMutant: an individual that has a different phenotype than wildtype and likely contains one more mutations that cause this difference. at $n$ different lociplugin-autotooltip__default plugin-autotooltip_bigLocus (plural form: loci): a physical location of a gene; often used as a synonym for a gene. that is used in a test crossplugin-autotooltip__default plugin-autotooltip_bigTest cross: a genetic cross devised by Gregor Mendel that allows a researcher to easily determine the genotype of an individual that appears wildtype but has an unknown genotype. This assumes you have a tester strain readily available. See Chapter 03.. See Chapter 03.