Final answer:
Myasthenic Syndrome, also known as Myasthenia Gravis, is a genetic neuromuscular disorder characterized by progressive muscle weakness and fatigue.
Step-by-step explanation:
Myasthenic Syndrome is also known as Myasthenia Gravis. It is a genetic neuromuscular disorder caused by the immune system blocking acetylcholine receptors on muscle cells, resulting in progressive muscle weakness and fatigue. The disease initially presents with painless muscle weakness around the eye and later progresses to involve other muscles in the body, including those responsible for swallowing and breathing. Treatment may include medications to counter the effects of the mutant gene or suppress the immune system.