suppose P is a dominant allele for a flower color and p is a recessive one.
The expected ratio of genotypes among the F1 offspring is 1 Pp : 1 pp.
The white pea bloom was "masked" in the F1 generation, which caused all of the flowers to be purple.
The "masked" genes from the F1 generation were permitted to mate, but they were only allowed to pair once, leaving the other three times to appear with purple flowers, resulting in a 3:1 ratio of purple to white blooms in generation F2.
He paired a homozygous dominant flower with a homozygous recessive flower in his initial attempt. As a result, all of the F1 generation's progeny were heterozygous, making them all purple.
Two heterozygous, one homozygous recessive, one homozygous dominant, and the progeny of the F1 generation were crossed with another heterozygous plant.
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