Agenetically transmitted disorder that is characterized by progressive weakness and muscle fiber degeneration without evidence of nerve involvement or degeneration of nerve tissue is known as

Musclar dystrophy.

Explanation:

It is caused by interferences (mutation)with the protein(gene sequnce) for formation of healthy muscles. Therefore leading to abnomaliteis in muscles cells formation and functions

Two major types most common in males than females:

Becker muscular dystrophy, Duchenne muscular dystrophy.,etc.

Most symptoms includes;

Muscle stiffness, frequent falls, walking on toes, learning disabilities etc.