Question

Suppose you work for a company that sells plant seeds. You are studying a plant species in which the dominant phenotype is pink flowers (PP or Pp). The recessive phenotype is white flowers (pp). Customers have been requesting more plants with pink flowers. To meet this demand, you need to determine the genotypes of some of the plants you are currently working with. Suppose you are presented with Plant A of the species you are studying. It has pink flowers. You want to determine the genotype of the plant. You cross Plant A with Plant B of the same species. Plant B has white flowers. The resulting cross yields six plants with pink flowers and six plants with white flowers.Suppose you work for a company that sells plant seeds. You are studying a plant species in which the dominant phenotype is pink flowers (PP or Pp). The recessive phenotype is white flowers (pp). Customers have been requesting more plants with pink flowers. To meet this demand, you need to determine the genotypes of some of the plants you are currently working with. Suppose you are presented with Plant A of the species you are studying. It has pink flowers. You want to determine the genotype of the plant. You cross Plant A with Plant B of the same species. Plant B has white flowers. The resulting cross yields six plants with pink flowers and six plants with white flowers.

Answer 1

If we cross Plant A (pink flowers) with Plant B (white flowers) of the same species, the resulting cross will give equal number (1:1 ratio) of the both colors. This means that the crossed plants had Plant A: Pp (heterozygous) and Plant B: pp (recessive homozygous) genotype.

P: Pp x pp

F1: Pp Pp pp pp