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test-cross
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Noun test-cross has 1 sense
  1. testcross, test-cross - 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
    --1 is a kind of hybridization, hybridisation, crossbreeding, crossing, cross, interbreeding, hybridizing
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