What is a test cross quizlet?
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Also know, what is a Testcross quizlet?
Crossing an organism with a dominant phenotype but unknown genotype with a homozygous recessive genotype to determine the unknown genotype.
One may also ask, what is a test cross when is it used and how is it done quizlet? A test cross occurs where we don't know a genotype but we cross it with a known genotype to guess the unknown genotype. How is a testcross similar to an experiment? It tests whether the trait is pure or not by mating the dominant trait with a recessive trait.
Hereof, what is the purpose of a test cross?
Test crosses are used to test an individual's genotype by crossing it with an individual of a known genotype. Individuals that show the recessive phenotype are known to have a homozygous recessive genotype. The purpose of a test cross is to determine if this individual is homozygous dominant or heterozygous.
What is the reason for doing a test cross quizlet?
Use a Punnett square to predict the offspring in a cross between a dwarf pea plant (homozygous recessive) and a tall pea plant (heterozygous).