Answer:
Revolving Service Structure (RSS) of launch pad 39B
1 air
2 water
3 food
4 temperature
5 sunlight
6 shelter
Next, Mendel took the F1 progeny and allowed them to self-fertilize. In the resulting F2 generation, 3/4 showed the dominant phenotype, and 1/4 showed the recessive phenotype. ... 1 out of 3 round pea plants from the F2 generation were true-breeding and produced only offspring with round peas.
