What is gyrA?

gyrA is an essential gene. [More information is available at EcoGene: EG10423]. DNA gyrase is one of two essential members of the type II topoisomerase family in Escherichia coli.

How is antibiotic resistance an example of artificial selection?

However if humans selectively breed organisms for specific traits, or if humans purposely change the environment (for example through overuse of antibiotics), “artificial selection” occurs. The overuse/misuse of antibiotics worldwide has artificially selected for a growing number of antibiotic resistant bacteria.

Is antibiotic resistance an example of natural or artificial selection?

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.

Are fluoroquinolones and quinolones the same thing?

There are several different types of antibiotics that may be used for various infections, but quinolones (also known as fluoroquinolones) are a type of infectious disease medication used primarily when there is a concern for multidrug resistance from other antibiotics.

Are fluoroquinolones antibiotics?

Fluoroquinolones are a class of antibiotics approved to treat or prevent certain bacterial infections. The fluoroquinolone antibiotics include ciprofloxacin (Cipro), gemifloxacin (Factive), levofloxacin (Levaquin), moxifloxacin (Avelox), and ofloxacin (Floxin).

What’s an example of artificial selection?

The breeding of plants and animals for producing desirable traits, is called as Artificial selection. Examples : 1 ) Breeding of cows. 2) Breeding of ships.

In what way is artificial selection different from natural selection?

Introduction. Artificial selection is distinct from natural selection in that it describes selection applied by humans in order to produce genetic change. When artificial selection is imposed, the trait or traits being selected are known, whereas with natural selection they have to be inferred.

What are examples of fluoroquinolones?

FDA-approved fluoroquinolones include levofloxacin (Levaquin), ciprofloxacin (Cipro), ciprofloxacin extended-release tablets, moxifloxacin (Avelox), ofloxacin, gemifloxacin (Factive) and delafloxacin (Baxdela).

Why are fluoroquinolones bactericidal?

The fluoroquinolones are bactericidal antibiotics that act by specifically targeting DNA gyrase. 10 In contrast to aminoglycosides and betalactams, some fluoroquinolones are active against dormant and replicating bacteria.

Is Augmentin a fluoroquinolones?

Augmentin and Cipro are different types of antibiotics. Augmentin is a combination penicillin-type antibiotic and a beta-lactamase inhibitor and Cipro is a quinolone antibiotic.

What is fluoroquinolone used for?

The fluoroquinolones are indicated for treatment of several bacterial infections, including bacterial bronchitis, pneumonia, sinusitis, urinary tract infections, septicemia and intraabdominal infections, joint and bone infections, soft tissue and skin infections, typhoid fever, anthrax, bacterial gastroenteritis.

What is artificial selection in humans?

Artificial selection is the process by which humans choose individual organisms with certain phenotypic trait values for breeding. If there is additive genetic variance for the selected trait, it will respond to the selection, that is, the trait will evolve.