How do Mendel’s experiments show that traits may be dominant or recessive
How do Mendel’s experiments show that traits may be dominant or recessive?
Mendel conducted a monohybrid cross with pea plants, and he observed that one of the contrasting characters disappears in F1 generator. This character reappears in F2 generation (obtained by selfing F1) in just 25% of the progeny.
Mendel conclude that the character which expresses itself in F1 is the dominant character while the other one when is not able to express though present in F1 individuals is recessive. This recessive character is able to express only in its pure form i.e. in 25% of F2 individuals.