Why is it not possible to study the inheritance pattern of traits in human beings, the same way as it is done in pea plant? Name the alternate method employed for such an analysis of human traits.

It is not possible to study the inheritance pattern of traits in human beings; the same way as it is done in pea plant because, the pea plant undergoes self-pollination in every generation thereby keeping it pure. But, this is not the same in case of humans. That is control crosses cannot be performed in humans.

Also, in a pea plant, one gene is responsible for a single character only but this is not true for human beings.

An alternate method employed for the analysis of human traits is Pedigree analysis. It is a diagram which shows how the genes are transmitted from one generation to another generation and also shows ancestral relationships of an individual.