Question

In pea plants the P (purple flower) allele is dominant to the p (white flower) allele, and the T (tall) allele is dominant to the t (dwarf) allele. What would be the phenotype of a plant with the genotype Pptt?

Answer 1

A pea plant with the genotype Pptt will have a phenotype expressing purple flowers due to the dominant purple allele and will be of dwarf stature because of the homozygous recessive dwarf alleles.

Step-by-step explanation:

The genotype Pptt in pea plants indicates that the plant has one dominant allele for purple flower color (P) and is homozygous for the recessive dwarf trait (tt). Because the purple flower allele (P) is dominant over the white flower allele (p), this plant will have purple flowers. Furthermore, being homozygous recessive for the height trait (tt) means that the plant will be dwarf. Thus, the phenotype of a pea plant with the genotype Pptt will be a plant with purple flowers and a dwarf stature.