testcross


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Related to testcross: incomplete dominance
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Synonyms for 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

References in periodicals archive ?
The testcross employed for sex-linked recombination mapping in each of the four exercises is shown.
A mating scheme for the in cis dihybrid testcross is shown in Figure 3; the equivalent scheme for the in trans dihybrid testcross is shown in Figure 4.
The other one half of the F2 progeny is the product of the se e/male gamete and is effectively the result of a testcross gamete.
We have no explanation why the testcross of Pamela Marshall's Fls gave such a low recombination frequency.
In order to determine if this method is appropriate and approximates the results obtained when a test-cross is carried out, the class also performed a testcross on the F1 generated from the same starting cross.
I have used this calculation method successfully in a sophomore-level Fundamentals of Genetics Lab when the students were not able to generate testcross data.