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Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
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davenwago davenwago
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11 years ago
What type of traits are used in a test cross?
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#1
11 years ago
Test cross = the cross of an organism with an unknown dominant genotype with an organism that is homozygous recessive for that trait
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#2
11 years ago
An organism of unknown genotype that shows the dominant phenotype is crossed with one that shows the recessive phenotype.  If any of the progeny show the recessive phenotype, it is known that the unknown dominant parent is heterozygous, not homozygous.
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