Question

In pea plants, purple flower color (P) is dominant over white (p), and tall plants (T) are dominant over short (t). If a white short plant is crossed with a purple and tall plant, and all the offspring from several crosses are only purple and tall, the genotype of the purple tall plant is:

Answer 1

PPTT

Step-by-step explanation:

our options for parents are pptt x PPTT OR pptt x PpTt

with pptt x PPTT all of the offspring will have dominant traits, but pptt x PpTt does not only produce the dominant traits

for this reason, the tall purple plant is PPTT