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How the exposure to penicillin affects the survival of some bacteria in the population?
Exposure to penicillin can lead to the survival of antibiotic-resistant bacteria in a population as non-resistant bacteria are killed off, leaving behind those that have developed resistance. Over time, this can increase the prevalence of antibiotic-resistant strains within the population. It highlights the importance of responsible antibiotic use to prevent the emergence and spread of resistance.
An antibiotic is effective in killing 95 percent of a population of bacteria that reproduce by the process shown below which statement best describes future generations of these bacteria?
Future generations of these bacteria are likely to have a higher proportion of individuals that are resistant to the antibiotic due to natural selection. Over time, the resistant bacteria will survive and reproduce, potentially leading to the evolution of a population that is largely resistant to the antibiotic.
Does pencillin heals any type of bacterial infection?
Penicillin is effective against many types of bacterial infections, but not all. It is mainly used to treat infections caused by certain bacteria such as streptococcus, staphylococcus, and some strains of pneumonia and meningitis. However, some bacteria are resistant to penicillin, and other antibiotics may be needed for those infections.
How has the species of bacteria become resistant?
In a large population of bacteria, there may be some cells that are not affected by the antibiotic. These cells survive and reproduce, producing even more bacteria that are not affected by the antibiotic.
What are bacteria diseases immune to antibiotics?
Some bacteria have become resistant to antibiotics due to overuse or misuse of these medications. Examples of antibiotic-resistant bacteria include Methicillin-resistant Staphylococcus aureus (MRSA), Vancomycin-resistant Enterococci (VRE), and Extended-spectrum beta-lactamase (ESBL) producing bacteria. These resistant bacteria can cause infections that are more difficult to treat and may require alternative antibiotics.
Why the frequency of penicillin-resistant bacteria can change over time within the population?
its smaLL
How is pencillin used?
Kill bacteria
How does a population of bacteria resistant to antibiotics?
A population of bacteria can become resistant to antibiotics through genetic mutations that confer resistance traits. These mutations can arise spontaneously or be acquired through gene transfer from other resistant bacteria. Over time, the selective pressure exerted by antibiotic use allows the resistant bacteria to survive and multiply, leading to the spread of resistance within the population.
What is an example of micro evolution?
You are an example of human micro-evolution as the population of humans has changed allele frequency over time. Micro-evolution is just evolution; change over time.
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.
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 the exposure to penicillin affects the survival of some bacteria in the population?
Exposure to penicillin can lead to the survival of antibiotic-resistant bacteria in a population as non-resistant bacteria are killed off, leaving behind those that have developed resistance. Over time, this can increase the prevalence of antibiotic-resistant strains within the population. It highlights the importance of responsible antibiotic use to prevent the emergence and spread of resistance.
What is the example of a microevolution?
An example of microevolution is the development of antibiotic resistance in bacteria due to natural selection. Over time, bacteria that are resistant to antibiotics survive and reproduce, leading to a population of bacteria that is predominantly resistant to that antibiotic.
A scientist who discovered a bacteria killing chemical called pencillin?
Alexender Flheming
An antibiotic is effective in killing 95 percent of a population of bacteria that reproduce by the process shown below which statement best describes future generations of these bacteria?
Future generations of these bacteria are likely to have a higher proportion of individuals that are resistant to the antibiotic due to natural selection. Over time, the resistant bacteria will survive and reproduce, potentially leading to the evolution of a population that is largely resistant to the antibiotic.
What is an example of micro-evolution?
An example of micro-evolution is the development of antibiotic resistance in bacteria due to natural selection. When exposed to antibiotics, bacteria with genetic mutations that provide resistance to the drug survive and reproduce, passing on the resistant trait to future generations. Over time, the proportion of resistant bacteria in the population increases, leading to the evolution of antibiotic-resistant strains.
What does pencillin do?
pencillin disrupts the cell wall of the bacteria by transpeptidization. it breaks the linkage between the NAM(N-acetyl muramic acid) & NAG(N- acetyl guanosine) praveen
