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 ?
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Mendel conducted a monohybrid cross with pea plants, and he observed that one of the contrasting characters disappears in F1 generation. 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 which is not able to express though present in F1 individual is recessive. This recessive character is able to express only in its pure form i.e. in 25% of F2 individuals.
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