Question

"P" represents a trait for large polka dots, " p " represents a trait for small polka dots. Determine the probability of the genotypes and phenotypes of offspring that would result from the following crosses. Start by making Punnett squares then report the probable genotype and phenotype outcomes of offspring as a percentage. Homozygous recessive x Homozygous recessive Homozygous recessive x Homozygous dominant Homozygous dominant x Homozygous dominant Heterozygous x Homozygous dominant Heterozygous x Homozygous recessive Heterozygous x Heterozygous

Answer 1

The probability of genotypes and phenotypes in offspring can be determined using Punnett squares. Different crossing combinations were discussed, including homozygous recessive x homozygous recessive, homozygous recessive x homozygous dominant, homozygous dominant x homozygous dominant, heterozygous x homozygous dominant, heterozygous x homozygous recessive, and heterozygous x heterozygous.

Step-by-step explanation:

To determine the genotypes and phenotypes of offspring resulting from different crosses, we can use Punnett squares. A Punnett square is a grid used to predict the possible genotypes and phenotypes of offspring based on the parents' genotypes.

When we cross two homozygous recessive parents (pp x pp), all the offspring will have the genotype pp and exhibit the phenotype for small polka dots.

When we cross two homozygous dominant parents (PP x PP), all the offspring will have the genotype PP and exhibit the phenotype for large polka dots.

When we cross a heterozygous parent with a homozygous dominant parent (Pp x PP), there is a 50% chance of the offspring having the genotype Pp (heterozygous) and a 50% chance of having the genotype PP (homozygous dominant). They will exhibit the phenotype for large polka dots.

Learn more about Punnett squares