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It is due to a selection process. Bacteria, like us, have individual genes and the antibiotics will kill off those that are affected by it but not the ones that resistant. These resistant forms will be the ones that survive. We are actually selecting for one that are immune to the antibiotic.
Wiki User
∙ 9y ago
Wiki User
∙ 12y agooveruse of antibiotic until a small percentage of microbes survive and reproduce, conferring their resistance onto their offspring, whose numbers can then survive and increase.
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How is antibiotic resistance an adaptation?
The trait giving bacteria antibiotic resistance has become common, giving bacteria with the trait a selective advantage.
Why does antibiotic resistance evolve in bacteria?
A random mutation in one bacteria can result in this. think of a huge population of bacteria. billions of bacteria. and only 5 or so have the resistance by a random chance (random mutation). the antiobiotics will kill all of bacteria, except for the 5 with the resistance. Then, only those 5 will reproduce. since they reproduce asexually, this resistance will be passed on to all of the daughter. Then, all of sudden, there are a lot of bacteria around that are resistant to the antibiotic... it can also occur by conjugation, which is when a bacteria inserts its DNA into another bacteria. this can result in the second bacteria having the resistance too. this is a very basic description of the process.
When bacteria are not affected by antibiotics they have?
They have resistance to the antibiotic.
Who benefits from a mutation that causes antibiotic resistance in bacteria?
The bacteria benefits.
Antibiotic in gene cloning?
If antibiotic resistance is added to the gene being cloned, antibiotics can be used to isolate the transformed bacteria (ones with the gene being cloned) by killing off all non-transformed bacteria, that don't have the antibiotic resistance. There is a chance that the non-transformed bacteria can mutate to develop antibiotic resistance.
What is an example of direct evidence for evolution is... genetic changes in plants antibiotic resistance in bacteria pesticide resistance in insects or all of the above?
genetic changes in plants, antibiotic resistance in bacteria, and pesticide resistance in insects.
Which biological agent may be susceptible to antibiotic's but can develope resistance?
bacteria
A mutation that causes antibiotic resistance in bacteria is a what mutation?
Missense mutation Nonsense mutation Frameshift insertion Frameshift deletion All may cause antibiotic resistance in bacteria
What is a word meaning a bacteria has adapted to antibiotics?
Resistant or resistance is when a bacteria has adapted to an antibiotic.
Has antibiotic resistance affected endocarditis?
Unfortunately, in recent years, the treatment of endocarditis has become more complicated as a result of antibiotic resistance
How does a population of bacteria resistant to antibiotics?
the bacteria mutates , so the antibiotic no longer affects the bacteria , therefore making it resistance
What contributes to the spread of antibiotic resistance among pathogenic bacteria?
Directional Selection
