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Definition of Testcross
1. Noun. 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.
Exact synonyms: Test-cross
Generic synonyms: Cross, Crossbreeding, Crossing, Hybridisation, Hybridization, Hybridizing, Interbreeding
Generic synonyms: Cross, Crossbreeding, Crossing, Hybridisation, Hybridization, Hybridizing, Interbreeding
Definition of Testcross
1. [v -ED, -ING, -ES]