The peas are self fertile and cross fertile. Mendel started with true-breeding strains. All of the above are Mendel s principle observations. All of the F1 generation had purple flowers.
White flowers are recessive to purple flowers.
The gene for white flowers was masked by the dominant allele in the F1 plants. The F1 plants are heterozygous. All of the above. They are homozygous recessive. They are heterozygous.