Stomach flu or gastroenteritis is caused by a contagious virus. Learn about stomach flu symptoms and home remedies to relieve dehydration and diarrhea. Stomach flu or gastroenteritis is caused by a contagious virus. Learn about stomach flu symptoms and home remedies to relieve dehydration and diarrhea.
Antibiotic resistance is the ability of bacteria to resist the effects of an antibiotic â that is, the bacteria are not killed, and their growth is not stopped. Resistant bacteria survive exposure to the antibiotic and continue to multiply in the body, potentially causing more harm and spreading to other animals or people.
See function of DNA. Most bacteria, become resistant to antibiotics by way of one or more of the following mechanisms that are coded for by genes in the bacterial chromosome or in plasmids (def): 1. Producing an enzyme capable of inactivating the antibiotic; 2.ost bacteria, however, become resistant to antibiotics as a result of mutation or genetic recombination. Mutation (def) in bacterial DNA can alter the order of nucleotide bases in a gene and alter that gene product.