In pea plants, the allele for purple flowers, P, is dominant over the allele for white flowers, p. Which conclusion about phenotype and genotype is possible?(1 point)

Question

In pea plants, the allele for purple flowers, P, is dominant over the allele for white flowers, p. Which conclusion about phenotype and genotype is possible?(1 point)
Responses

If a plant has purple flowers, then its genotype must be PP.
If a plant has purple flowers, then its genotype must be PP .

If a plant has white flowers, then its genotype must be Pp.
If a plant has white flowers, then its genotype must be Pp .

If a plant has purple flowers, then its genotype must be Pp.
If a plant has purple flowers, then its genotype must be Pp .

If a plant has white flowers, then its genotype must be pp.
If a plant has white flowers, then its genotype must be pp .
Skip to navigation

GPT-4o mini · Answer

In pea plants, the allele for purple flowers (P) is dominant over the allele for white flowers (p). This means the phenotype of purple flowers can be produced by either the homozygous genotype (PP) or the heterozygous genotype (Pp). Conversely, the phenotype of white flowers can only be produced by the homozygous recessive genotype (pp).

From the statements given, the only correct conclusion is:

If a plant has white flowers, then its genotype must be pp.

This is accurate because only the genotype pp will express the white flower phenotype. Any plant with purple flowers could either be PP or Pp, so we cannot conclude a specific genotype for purple flowers.