test-cross

Noun test-cross has 1 sense

• test-cross(n = noun.act) 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;
is a kind of cross, crossbreeding, crossing, hybridisation, hybridization, hybridizing, interbreeding