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Determine the genotype of the purple flower if (P) is dominant and white (p) is recessive

Respuesta :

If the genotype is PP then when crossed with pp all the offspring will be Pp and purple. 
If the genotype is Pp then when crossed with pp 50% of the offspring wil be Pp (purple) and 50 % will be pp (white). 
These results will allow you to see whether the purple is homozygous (PP) or heterozygous (Pp).