Question

In corn kernels, the traits for purple color (P) and plump kernles (S) are.dominant and the traits for yellow color (p) and shrunlen kernels (s) are recessive. a cross is made between a homozygous dominant for purple and plump kernels and homozygous recessive for yellow and shrunken kernels. What is the genotype and phenotype of each parent? Draw the Punnet squate for this dihybrid cross. Describe the genotype of all of the offspring. Describe the phenotype of all of the offspring.

Answer 1

Answer:

             ps            ps           ps            ps

PS     PpSs           PpSs       PpSs       PpSs

PS     PpSs           PpSs       PpSs       PpSs

PS      PpSs           PpSs       PpSs       PpSs

PS       PpSs           PpSs       PpSs       PpSs

The genotype of the dominant parent will be PS. The genotype will be homozygous dominant for purple colour and plump kernels. Phenotype would be purple colour, plump kernels.

The genotype of the recessive parent will be ps. The genotype will be homozygous recessive for yellow colour and shrunken kernels. Phenotype would be yellow colour and shrunken kernels.

The genotype of the children would be PpSs. They will be heterozygous dominant. The phenotype will show purple colour and plump kernels.