Biology for IGCSE & O level - Inheritance (Section 4 - No. 9)
What is the purpose of a test cross?
To determine if an individual is homozygous dominant or heterozygous for a trait.
To determine the genotype of the offspring.
To determine the phenotype of an individual.
To determine the probability of having a specific genotype.
Explicaţie
A test cross involves crossing an individual with an unknown genotype with a homozygous recessive individual to determine the unknown genotype.