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.
  Polygenic traits are [characteristics of organisms that are] â¦  influenced by several genes.    So multiple alleles are more than two alleles for one trait, and  polygenic traits are one trait that is influenced by mulitple  genes. polygenic trait is a trait in which multiple sets of alleles are used to determine the trait, whereas in a single gene trait aka. a Mendelian trait, only one pair of alleles â¦ is used.