In garden peas,one pair of alleles controls the height of the plant,and a second pair of alleles controls flower color.The allele for tall (D)is dominant to the allele for dwarf (d),and the allele for purple (P)is dominant to the allele for white (p).A tall plant with white flowers crossed with a dwarf plant with purple flowers produces all tall offspring with purple flowers.What is the genotype of the parents?
A) Dd Pp x Dd pp
B) Dd Pp x Dd Pp
C) DD pp x dd PP
D) Dd pp x dd Pp
E) DD Pp x dd pp

Question

In garden peas,one pair of alleles controls the height of the plant,and a second pair of alleles controls flower color.The allele for tall (D)is dominant to the allele for dwarf (d),and the allele for purple (P)is dominant to the allele for white (p).A tall plant with white flowers crossed with a dwarf plant with purple flowers produces all tall offspring with purple flowers.What is the genotype of the parents?  
A) Dd Pp x Dd pp
B) Dd Pp x Dd Pp
C) DD pp x dd PP
D) Dd pp x dd Pp
E) DD Pp x dd pp

Quizplus · Accepted Answer

The parents must be homozygous for the traits that are expressed in the offspring (tall and purple flowers), indicating one parent is DD pp (tall, white flowers) and the other is dd PP (dwarf, purple flowers). This combination ensures all offspring are tall (Dd) and have purple flowers (Pp), matching the described outcome.

In Garden Peas,one Pair of Alleles Controls the Height of the Plant,and