Coagulase reacts with prothrombin in the blood. The resulting complex is called staphylothrombin, which enables the enzyme protease to convert fibrinogen, a plasma protein produced by the liver, to fibrin.
Chromosome diseases are genetic diseases where a large part of the genetic code has been disrupted. Chromosomes are long sequences of DNA that contain hundreds or thousands of genes.
1 Genetic mutationâ A permanent change in a gene that can be passed on to children. 2  The rare, early-onset familial form of Alzheimer's disease is associated with mutations in genes on chromosomes 21, 14, and 1. 3  Genetic risk factorâ A change in a gene that increases a person's risk of developing a disease.