Describe the features of the work of Mendel, which allowed him to succeed.

Different varieties of sowing peas that produced prolific offspring with intraspecific crosses;
Pea is a self-pollinating plant;
Peas are unpretentious and have high fecundity;
Mendel chose simple qualitative alternative characteristics of the “either-or” type (purple or white flowers, yellow or green seeds) as experimental attributes;
When processing the data obtained, Mendel conducted a rigorous mathematical account of the phenotypes of all plants and seeds.

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