Asked by qwerty

Mendel also studied pod color, which could be green or yellow, as well as seed shape, which could be round or wrinkled.

Consider the following cross:

P generation:
Yellow pods with round seeds=____
Green pods with wrinkled seeds=____

F1 generation
100% Green pods with round seeds=____

Options:
aa BB
AA bb
Aa Bb
AA BB
Aa BB
A_ BB
AA Bb
aa Bb
A_ Bb
Aa bb
aa bb
A_ bb
AA B_
Aa B_
aa B_
A_ B_

In some cases, an individual's genotype could be either "AA" or "Aa" and the data provided do not allow you to distinguish between these possibilities. In that case, we will use the shorthand "A_" to represent "AA or Aa".
Answered by qwerty
Remember that the upper-case letter corresponds to the allele with the dominant phenotype. Use the symbols "A" and "a" for pod color and the letters "B" and "b" for seed shape.
Answered by Devron
See your later post.