testcross

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test·cross

 (tĕst′krôs′, -krŏs′)
n.
A cross between an individual exhibiting the dominant phenotype of a trait and an individual that is homozygous recessive for that trait in order to determine the genotype of the dominant individual.
tr.v. test·crossed, test·cross·ing, test·cross·es
To subject to a testcross.

testcross

(ˈtɛstˌkrɒs) genetics
n
(Genetics) a genetic test for ascertaining whether an individual is homozygous or heterozygous
vb (tr)
(Genetics) to subject to a testcross

test•cross

(ˈtɛstˌkrɔs, -ˌkrɒs)

n.
a genetic test for heterozygosity in which an organism of dominant phenotype, but unknown genotype, is crossed with an organism recessive for all markers in question.
[1930–35]
test′-cross`, v.t.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.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
hybridisation, hybridization, hybridizing, interbreeding, crossbreeding, crossing, cross - (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids
References in periodicals archive ?
In both cases, the trihybrid virgin females are testcrossed to ([y.
These F1 flies were either mated together to produce dihybrid F2 data or were testcrossed to produce dihybrid testcross data.