What is Morphan’s syndrome and which of the following type of genes cause it :

1. epistatic genes
2. codominant genes
3. pleiotropic genes
4. polymeric genes

Morphan’s/ Marfan syndrome is characterised by slender body, limb elongation. hypermobility in joints and tendency to develop heart disease, lens dilocation. The gene associated is a pleitropic gene which controls many phenotype.So as you can see that mutation infibrillin-1 (FBN1) gene has led to ocular(eye), skeletal, cardiovascular system problem.