Question

20. Punnett squares show: possible results of a genetic cross, the genotypes of the offspring, the alleles in the gametes of each parent but not

Answer 1

Punnett squares do not show the actual phenotypes of the offspring or the environmental factors that may influence the expression of those phenotypes. They illustrate possible genetic combinations based on the alleles contributed by each parent, but they don't predict which of those combinations will occur in an actual cross or how the environment might affect the traits expressed by those genotypes.