Question

THE OFFSPRING OF A CROSS BETWEEN A PLANT WITH PURPLE FLOWERS AND A PLANT WITH WHITE FLOWERS ARE 23 PLANTS WITH PURPLE AND 26 WITH WHITE FLOWERS. USE THE LETTER P FOR PURPLE AND p FOR WHITE. WHAT R THE GENOTYPES OF THE PARENT PLANTS.

Answer 1

The genotypes of the parents must be Pp and pp, such that half the progeny have the dominant allele (P_) and half have the recessive phenotype (pp).