Question

How did Mendel explain that it is possible that a trait is inherited but no expressed in a organism?

Answer 1

by the law of independent assortment

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Answer 2

This was explained by Mendel by his experiments on pea. He studied that when a tall and a dwarf plant are crossed, their progeny are all tall. But when the progeny are self crossed, they get 3/4th of the next generation of progeny as tall, and the other 1/4th as dwarf. That means, there were some character in the previous generation that was not expressed in that generation, but it got the opportunity to get expressed in the second generation.

So this is how he proved, or you may say explained, that traits maybe ingerited but not expressed. This was also stated as the law of dominance, that only a dominant trait is expressed even if a recessive trait is present, but a recessive trait can express itself, when it is present in a homozygous state.


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