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What is the purpose of a testcross?


To determine if a parent has a lethal allele.

To determine the genotype of offspring from a cross.

To determine is a trait is inherited.

To determine the genotype of a parent with an unknown phenotype.

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Answer:

A test cross is a way to explore the genotpye of an organism. Early use of the test cross was as an experimental mating test used to determine what alleles are present in the genotype.

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