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Analyzing Gene Expression and Function
Test Cross in Genetic Inheritance
Description
A test cross is a genetics tool used to determine the genotype of an organism with a dominant trait. It helps reveal whether the dominant individual is homozygous or heterozygous by crossing it with a recessive individual.
The outcome of the cross shows the hidden genotype. If any offspring show ...
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Transcript
A test cross is a technique that can be used to determine the genotype of an organism expressing a dominant trait, like purple flower color in pea plants.
Because the dominant version, or allele, of a gene will always be expressed over the recessive allele, organisms with the homozygous dominant genotype, two dominant alleles, will appea...
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