Explain antibiotic resistance in terms of natura

Question

Explain antibiotic resistance in terms of natural selection and evolution.

nyronbeeput · Answer

Antibiotic resistance happens when germs like bacteria and fungi develop the ability to defeat the drugs designed to kill them. This resistance is developed through the process of natural selection through the exposure of these cells to reduced doses of the drug. When a drug is prescribed by a doctor and the patients do not follow the instructions properly or they stop using the drug before all the pathogens are killed, those that are exposed to the lower doses develop resistance and can survive even if a higher dosage is applied. Natural selection is where organisms that possess traits that makes them adaptable to their environments will survive and reproduce to form the next generation and pass on the advantage to their offsprings. The bacteria/fungus that have become resistant or immune to the antibiotic will live on and reproduce thus passing on the resistance ability to their offspring. These are said to be selected for by the process of natural selection. The fittest organisms will survive.

RajGoel · Answer

Antibiotic resistant is one of the biggest threat to global health, food security and development. It is defined as the capabilities developed within the bacteria to resist the effect of the antibiotics/drugs on their life cycle. It occurs when the antibiotics become unsuccessful in killing the bacteria's which they are designed to kill. The bacteria becomes resistant to any effect of the antibiotic on them. This makes the bacterial infection harder and harder to treat. When we take an antibiotic, most of the bacteria's are killed but some of them are not affected or killed. These bacteria are said to be resistant. These resistant bacteria then reproduce, passing there resistance to their offsprings, making a new set of bacteria which are completely resistant to the antibiotic. Then the antibiotic has no affect of them and thus become useless. This is where the real problem arises. The bacterial infections then become hard to treat and then, we have to shift to complex methods of treating them which are often less effective and more expensive. This mainly happens due to overdose of the antibiotics. The bacteria's, over time bring changes in them and evolution of new bacteria occurs which are resistant. This also follows from the much famous law i.e. survival of the fittest. The bacteria which is the most fit among all will survive due to natural selection and over time evolution occurs and makes a whole new population of resistant bacteria.

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Explain antibiotic resistance in terms of natura

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