1 Superficial MRSA skin infections include pimples, boils, and impetigo. 2  Impetigo is a superficial skin infection that often has a crusty and/or blistered appearance. 3  If left untreated, superficial infections have potential to progress into serious/invasive infections. If left untreated, superficial infections have potential to progress into serious/invasive infections. 2  Deep MRSA skin infections include abscesses and cellulitis. 3  Both of these present as painful, red, swollen areas of skin.
Home Â» Polygenic inheritance. Definition. noun. A non-Mendelian form of inheritance in which a particular trait is produced by the interaction of many genes. Supplement.
Multifactorial inheritance, which is also called complex or polygenic inheritance. Multifactorial inheritance disorders are caused by a combination of environmental factors and mutations in multiple genes. For example, different genes that influencebreast cancer susceptibility have been found on chromosomes 6, 11, 13, 14, 15, 17, and 22. Some common chronic diseases are multifactorial disorders.