Question

Usually receive character is expressed only when present in a double recessive condition . However, a single recessive gene can express itself in human beings when the gene is present on

Answer 1

How can a mutation in one single gene cause a disease with a wide range of symptoms? This situation is referred to as pleiotropy, and it has been identified in a wide range of species, even humans. A pleiotropic gene is a single gene that controls more than one trait.