Examine the following crosses carried out to explore inheritance of traits in pea plants
Parent cross: rough, soft peas X smooth, hard peas F1: all rough, hard Test
cross: rough, hard X smooth, soft peas F2: 115 rough soft, 110 smooth hard, 8
rough hard, 12 smooth soft
Identify which traits are dominant, and either support or refute the hypothesis
that the traits rough/smooth and soft/hard assort independently according to
Mendel's law,