Noun: testcross
- A cross between an organism whose genotype for a certain trait is unknown and an organism that is homozygous recessive for that trait so the unknown genotype can be determined from that of the offspring
"Geneticists use testcrosses to determine if an organism is heterozygous or homozygous for a particular trait";
- test-cross
Derived forms: testcrosses, test-crosses
Type of: cross, crossbreeding, crossing, hybridisation [Brit], hybridising [Brit], hybridization, hybridizing, interbreeding
Encyclopedia: Testcross