How Does Natural Selection Affect Antibiotic Resistance? Antibiotic resistance is a consequence of evolution via natural selection. The antibiotic action is an environmental pressure; those bacteria which have a mutation allowing them to survive will live on to reproduce. They will then pass this trait to their offspring, which will be a fully resistant generation.
Is Resistant Bacteria An Example Of Natural Selection? Over time, bacteria can become resistant to certain antibiotics (such as penicillin). This is an example of natural selection. How does antibiotic resistance affect natural selection? Survival of the Fittest (Natural Selection) When bacteria are initially exposed to an antibiotic, those most susceptible to the antibiotic will
What Is Acquired Resistance? Acquired antimicrobial resistance is the result of an evolutionary process by which microorganisms adapt to antibiotics through several mechanisms including alteration of drug target by mutations and horizontal transfer of novel/foreign genes, referred to as resistance genes. How acquired resistance is produced? As it will be discussed later in the chapter,
What Does The Plasmid Do? Plasmids have been key to the development of molecular biotechnology. They act as delivery vehicles, or vectors, to introduce foreign DNA into bacteria. Using plasmids for DNA delivery began in the 1970s when DNA from other organisms was first ‘cut and pasted’ into specific sites within the plasmid DNA. What