Hugo de Vries formulated the “Mutation Theory'' based on the experiments he conducted on

Milk secretion and beard growth, both the traits are

Self sterility in "Nicotiana'' was reported by

A pedigree chart below shows the inheritance of a particular sex-linked trait ("trait") Key: Unaffected Males Affected Males Unaffected Females Affected Females How is the trait being studied in the pedigree chart above?

Experimental verification of the chromosomal theory of inheritance was given by

The resemblance of individuals to their progenitors is called