Question

What kind of cross is used when one of the parents has an unknown genotype?.

Answer 1

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The term is called a test-cross. This method is used to determine the genotype of someone whose genotype is unknown. For instance, we can see the person's eye color, which is Hazel, but we cannot identify which genotype they have because they have mixed eye colors. You would have to test or back cross to discover their genotype.

Answer 2

Test/Back Cross ( a method used to determine the unknown genotype of organsm by crossing it with recessive phenotype)