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Antibiotics are used to treat viruses.?
NO! Antibiotics have no effect at all on viruses and should never be used to treat viral infections and doing so accelerates the evolution of antibiotic resistance in bacteria.
Explain why the evolution of resistance to antibiotics in bacteria is an example of directional natural selection?
All bacteria, as are all organisms, are variants and some of these variants are resistant to antibiotics. So, a population of bacteria, in their immediate environment, are subjected to an antibiotic and most succumb. So, the resistant, survive the onslaught ( are naturally selected ) and reproduce progeny that are also resistant to the antibiotic. So, allele frequency shifts and evolution occurs die to the adaptive change conferred on the progeny population by natural selection.
How does the growth of antibiotic resistance in bacteria support the theory of evolution in natural selection?
All bacteria, as are all organisms, are variants and some of these variants are resistant to antibiotics. So, a population of bacteria, in their immediate environment, are subjected to an antibiotic and most succumb. So, the resistant, survive the onslaught ( are naturally selected ) and reproduce progeny that are also resistant to the antibiotic. So, allele frequency shifts and evolution occurs die to the adaptive change conferred on the progeny population by natural selection.
Is antibiotic resistance proof of evolution?
You have a population of bacteria that are all variant, morphologically and, rather redundantly, genetically. The antibiotic is applied and some of these bacteria are resistant ( this is simplistic, but valid ) and survive to reproduce. They have been naturally selected and their alleles, which conferred their resistance, are represented in the next generation of bacteria. This is evolution; the change in allele frequency over time in a population of organisms.
What is an example of genes becoming more common in a population?
One example of a gene becoming more common in a population is antibiotic resistance in bacteria. When the antibiotics kill the bacteria some have a mutation that makes them resistant. These bacteria then reproduce and over time the species genetic code changes so that they are antibiotic resistant. This is the reason new vaccines are constantly released. The same basic principle works in pesticide resistance of rats.
How does hand hygiene fight antibiotic resistance?
because our hands life many microbes so you must wash your hands mostly. they cause antibiotic resistance when you eat some microbes, you feel stomach pain you eat small dose of antibiotics then bacteria become resistance the some antibiotics
Why would bacteria changing so antibiotic medicine won't harm them anymore be a problem?
The bacteria builds resistance and gets so strong the anibotics don't work. If that happens you won't get better when you have an infection. So finish your antibiotic!
How does a population of bacteria resistant to antibiotics?
the bacteria mutates , so the antibiotic no longer affects the bacteria , therefore making it resistance
Why is it a problem in medicine for anibiotic resistance?
Antibiotic resistance happens when taking antibiotics more that it is required, high frequent doses will cause bacterial antibiotic resistance because in this case bacteria will get use into certain drug and so become ineffective. Resistance also happen when the patient has frequent illness, which make him/her taking the antibiotic for a long period of time. At that point patient should go the physician to describe him/her another effective drug, in order to kill bacteria and stop the illness.
How does MRSA relate to evolution?
By evolving! This methicillian resistant bacteria was not always that way, but as you may know every time an antibiotic is used there are always some variations of the bacteria that are resistant. They survive, reproduce and pass this resistance on to their progeny. And the process repeats so that soon, as bacterial generations are quick, you have super resistant bacteria. This is evolution by natural selection. Change in a population of organisms over time.
How does resistance to antibiotics in humans and pesticides in insects exemplify the process of evolution by natural selection?
So, you use antibiotic on bacteria and insecticides on insects while knowing all organisms are variants and some will survive your attacks and reproduce the next generations that will also have the survivability traits. Not quite natural selection, as it is not the environment doing the selecting, but quite effective in causing evolution by selecting the alleles that will survive and reproduce. Evolution is the change in allele frequency over time in a population of organisms.
Can you give an example of sentence using the word evolution?
The evolution of my Charmander into Charmeleon took so long, it froze my GameBoy.
