| NOUN | act | test-cross, 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 |
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| Meaning | 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. | |
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| Synonym | testcross | |
| Broader | hybridization, hybridisation, crossbreeding, crossing, cross, interbreeding, hybridizing | (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids |
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