Medical Definition of HOMEODOMAIN. : a domain in a protein that is encoded for by a homeobox, that consists of about 60 amino acid residues which are usually similar from one such domain to another, and that recognizes and binds to specific DNA sequences in genes regulated by the homeotic gene.weet. : a domain in a protein that is encoded for by a homeobox, that consists of about 60 amino acid residues which are usually similar from one such domain to another, and that recognizes and binds to specific DNA sequences in genes regulated by the homeotic gene.
Definition. Methicillin-resistant Staphylococcus aureus (MRSA) infection is caused by a type of staph bacteria that's become resistant to many of the antibiotics used to treat ordinary staph infections.efinition. Methicillin-resistant Staphylococcus aureus (MRSA) infection is caused by a type of staph bacteria that's become resistant to many of the antibiotics used to treat ordinary staph infections.
What is MRSA? This tiny cluster of bacteria is methicillin-resistant Staphylococcus aureus (MRSA), seen under a microscope. This strain of the common staph bacteria causes infections in different parts of the body -- including the skin, lungs, and other areas. MRSA is sometimes called a superbug because it doesnât respond to many antibiotics. Though most MRSA infections are minor, some can be life-threatening.