Mendel's crossbreeding of offspring of true-bred green and yellow peas led to ________ in the second generation.
A) only green individuals surviving the first days of life
B) a 3:1 ratio of yellow to green offspring
C) yellowish-green individuals
D) half the offspring being green and the other half yellow

Question

Quizplus · Accepted Answer

Mendel's crossbreeding of true-bred green and yellow peas resulted in all of the offspring in the first generation being yellow. However, when these yellow offspring were allowed to self-fertilize or were crossbred with another true-bred yellow individual, the second generation showed a clear 3:1 ratio of yellow to green offspring. This ratio demonstrated that the green trait had been present in the first generation, but had been masked by the dominant yellow trait.

Mendel's Crossbreeding of Offspring of True-Bred Green and Yellow Peas