Definition of testcross

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  • testcross is a valid Scrabble US word with a point value of 11
  • testcross is a valid Scrabble UK word with a point value of 11
  • testcross is a valid Words with friends word with a point value of 12

Definition of 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 (noun)

    Synonyms

    1. test-cross

See definition of testcross in Merriam Webster