In pea plants P represents purple flowers while p represents white, and T represents tall plants while t represents short. Biologists cross two pea plants, each with the genotype PpTt.

We would expect what phenotypic ratio from this dihybrid cross?
A) 1:1:1:1 ratio
B) 9:3:3:1 ratio
C) all dominant for both traits
D) all recessive for both traits

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables