Which of the Following Diagrams is Used to Predict the Genotypic

Question

Which of the following diagrams is used to predict the genotypic and phenotypic outcome of a cross?  
A) Pedigree
B) Testcross
C) Punnett square
D) Phylogenetic tree
E) Venn diagram

Accepted Answer

Punnett squares are specifically designed to show the potential genotypic and phenotypic ratios of offspring resulting from a specific cross between two individuals. Pedigrees show the transmission of traits within a family and can be used to infer genotypes, but they do not predict outcomes of crosses. Testcrosses are used to determine the genotype of an individual with a dominant phenotype and are not used to predict outcomes of crosses. Phylogenetic trees show the evolutionary relationships between species, and Venn diagrams are used to compare and contrast different groups or sets of data.