Mendel observed phenotypic traits during the cross of pea plants. Subsequently, he noted each trait had only two forms.
Mendel's Experiments
Mendel crossed pure-breeding pea plants, and then he crossed hybrid generations, as well crossed the hybrid progeny back to parental lines.
From these crosses, Mendel observed the descendence and then formulated a series of inheritance principles.
Mendel noted traits can be divided into dominant and recessive phenotypic characteristics.
Dominant characteristics were inherited in an unaltered manner after hybridization of true breeding [plants.
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