noun Date: 1934 a genetic cross between a homozygous recessive individual and a corresponding suspected heterozygote to determine the genotype of the latter, ~ transitive verb
TESTCROSS
Meaning of TESTCROSS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012