The term scientific theory indicates the well supported statement, which explain the working of any phenomenon.
The Scientific theory is determined after experimenting about a particular hypothesis. The scientific theory have the proper explanation about the phenomenon, why it and how it occurs. There are no guesses or idea in the theory, and the experimentation done to establish a theory are replicatable (repeatable) and produce same results all the time.
Answer: This told him that the allele for a green pod is dominant to the allele for yellow pods.
Explanation: Dominant traits will express themselves even if the allele for the other trait is there. If all of the offspring were green even though they carried the allele for a yellow pod, green must be dominant.