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the bacteria mutates , so the antibiotic no longer affects the bacteria , therefore making it resistance
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Which is a way that biotechnology has Not helped society?
New, stronger bacteria have evolved that are resistant to antibiotics.
How does the use of antibiotics and pesticides cause resistance in insects and bacteria?
The use of antibiotics and pesticides creates an artificial selection scenario that culls bacteria and insects that cannot survive the treatments. Those micro-organisms and insects that do not succumb to the effects of antibiotics and pesticides survive to reproduce, and their offspring share their resistance to the antibiotics and pesticides that did not kill them. Now the entire population is resistant. Here is an example of how to make a population of insects pesticide resistant (micro-organisms respond similarly to antibiotics): Assumption: Insect Population I has a 99% mortality when exposed to Pesticide P Stage 1: 100,000 Population I insects are treated with Pesticide P Stage 2: Pesticide P treatment kills 99% of Population P Stage 3: 1,000 insects survive and reproduce Stage 4: Population R is 100% resistant to Pesticide P
What is superbug?
a superbug is a micro-organism that is resistant to most anti-biotics. the superbugs in recent history are imune to all anti-biotics,except one. it is the gene of the3 superbug that is resistant to the antibiotics. a tiny change in one gene or a mutation can turn a bacterial cell into a superbug. one single superbug on its own will not do much damage but if it reproduces rapidly then it could produce a large population of bacteria which are all resistant to antibiotics. superbugs can have an increased risk of being resistant to antibiotics when: A) people take antibiotics they do not really need B) people do not finish their full course of antibiotics
How do humans influence the evolution of microbes?
By changing their environment. For instance widespread use of antibiotics, particularly in low doses, results in the evolution of bacteria that are resistant to those antibiotics
Why shouldn't you take the antibiotics that has been prescribed for someone else?
because it might not be effective for you depending on you illness . This is because your body might be resistant to antibiotics. Also u might have a virus and this is where the antibiotics wount work for you anyway because antibiotics are designed for bacteria.
Do antibiotics cause bacteria to become resistant?
Yes, over use of antibiotics can cause bacteria to become resistant.
How does resistance develop in bacteria?
Bacteria, like all organisms, have phenotypic variations. Some bacteria are resistant to antibacterial drugs and survive the onslaught of these drugs. They then go on to have progeny ( by fission ) that they confer this resistance on so that you have a new population of resistant bacteria.
What is a word meaning a bacteria has adapted to antibiotics?
Resistant or resistance is when a bacteria has adapted to an antibiotic.
What is an mrsa?
mrsa means multiple resistant staphylococus aureus. Is a bacteria which is resistant to several antibiotics
are Antibiotics are useful for limiting the growth of most pathogenic bacteria?
no, many bacteria have become resistant due to improper use of antibiotics.
What is antibiotic resistant bacteria?
Also known as "superbugs", antibiotic resistant bacteria have evolved to a point that our usual antibiotics won't kill them. VRE and MRSA are common forms of antibiotic resistant bacteria.
Why has there been a large increase of antibiotic resistant strains of bacteria?
Overuse of traditional antibiotics has caused a selection of those bacteria that are resistant to the antibiotic.
What is the given name to the bacteria that doesn't respond to antibiotics?
If a microbe is not affected by antibiotics, it is said to be resistant to the antibiotic.
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.
Does bacteria exhibit genetic diversity within bacterial species?
Yes. This is why bacteria are becoming resistant to antibiotics.
How does a bacteria populations become drug resistant A. Antibiotics remove drug-susceptibles individuals but kleave those that are drug resistant B. Natural slection drives bacterial population Chan?
all the above
The bacteria that has been most effective at becoming resistant to antibiotics is?
Clostridium difficile.
