Test cross examines the genotype of organisms that show off a dominant phenotype for a selected trait. In test mating, an organism with an unknown genotype but a dominant phenotype is mated with a homozygous recessive organism of the same trait.
A person's genotype is her DNA sequence that is unique to that person. More specifically, the term refers to her two alleles that an individual inherits for a particular gene. A phenotype is the detectable expression of that genotype, i.e., the patient's clinical symptoms.
A person's genotype is the aggregate of alleles they've for a selected gene. A person's phenotype is a combination of observable traits or characteristics. An organism's genotype is inherited directly from its parents, but phenotype is influenced only by genotype.
• An organism with a dominant trait is always mated with an organism with a recessive trait.
• An unknown genotype is heterozygous if the offspring show the recessive trait.
• unknown genotype is homozygous dominant if all offspring have the dominant trait
To learn more about test cross visit:
https://brainly.com/question/2895163
#SPJ4