Answer:
Punnett square is a diagram used to predict all possible allele combinations from a genetic.
Using a test cross, the phenotypes of offspring can be determined from the genotypes.
Explanation:
The Punnett square, was developed by Reginald Punnett and refers to a diagram where, through the composition of the parents' genotype, it is possible to determine the allelic frequencies of an offspring, resulting from the crossing of these parents.
The test cross, presents the genotypic composition of this offspring, allowing an assumption of the genotype of each member of the offspring to be visualized, through the dominance and recessivity relationships between the alleles.
An example of a punnett square is attached below.
