Tallness (T)in snapdragons is dominant to dwarfness (t), while red (R)flower color is dominant to white (r). The heterozygous condition results in pink (Rr)flower color. A dwarf, red snapdragon is crossed with a plant homozygous for tallness and white flowers. What are the genotype and phenotype of the F₁ individuals?

Question

Quizplus · Accepted Answer

The dwarf, red snapdragon parent can be represented as ttRR, and the tall, white snapdragon parent can be represented as TTRr. When these parents are crossed, the Punnett square would be:

| t | t
---|---|---
TT | Tt | Tt
Rr | TtRr | TtRr

Therefore, the F₁ individuals would have the genotypes TtRr (tall and pink) and Ttrr (dwarf and red).

Tallness (T)in Snapdragons Is Dominant to Dwarfness (T), While Red