testcross

Definitions 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
    synonyms: test-cross
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    type of:
    cross, crossbreeding, crossing, hybridisation, hybridization, hybridizing, interbreeding
    (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids
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