How is a genetic disorder caused?

What is genetic disorder?

Phenylketonuria is a genetic disorder due to a defect in metabolism of the following

How are Mendelian disorders caused?

ELISA is a technique based on the principles of antigen- antibody reactions. Can this technique be used in the molecular diagosis of a genetic disorder such as Phenylketonuria?

Mangolism is a genetic disorder which is caused by the presence of an extra chromosome number.

________ is a genetic disorder of the eye.

Phenylketonuria is a genetic disorder of

What is a genetic disorder? Mention its types?