Answer:
The experiment which he performed is testing of seed color and shape at the same time.
Step-by-step explanation:
In order to see that whether the pattern of inheritance for one trait is influencing the pattern of inheritance for another Gregor Mendel worked on examining seed color and shape at the same time, and aimed his search in the color of the flower, seed shape, pod shape, seed coat tint, location of the flower, unripe color of the pod, and height of the pea plants. In order to explain the concept, the coined the terms dominant and recessive.