Whenever a pea plant with homozygous dominant trait for a character is cross-fertilized with the plant having contrasting recessive trait, we observe:

Whenever a pea plant having homozygous dominant trait is cross-fertilized with the plant having contrasting recessive trait, all the F1 progeny show dominant trait. The F1 progeny formed after the cross is genotypically in heterozygous condition. We know that in a heterozygous condition only the dominant trait is expressed.