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It is when a certain bacteria resists a drug such as antibiotics
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∙ 14y ago
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How does a population of bacteria resistant to antibiotics?
the bacteria mutates , so the antibiotic no longer affects the bacteria , therefore making it resistance
Can bacteria deveop resistance to germicides like alcohol or bleach?
Yes,
Why are some bacteria and microorganisms referred to as superbugs?
Because they have developed resistance to antibiotics.
What one plate would you first inspect to conclude that the transformation occurred successfully Why?
If you transform bacteria with a plasmid containing a selection marker (such as an antibiotic resistance gene) and plate the transformed bacteria on a plate suited for selecting for plasmid-containing bacteria (such as a plate containing an antibiotic that only those bacteria with antibiotic resistance can survive), then simply inspecting whether colonies are present on the plate will suffice in determining whether the transformation succeeded. If no colonies are found, that means no bacteria got the antibiotic resistance gene on the plasmid and the transformation was unsuccessful. If some colonies are found, that means some bacteria contain the plamis containing the antibiotic resistance gene and those colonies can the transformation was successful.
Describe the use of plasmids as vectors in biotechnology?
Plasmids are often used as expression vectors in biotechnology. Plasmids are small, circular or linear pieces of DNA containing non-essential genes that are found in all life, although much more common in prokaryotes, especially bacteria. These genes confer abilities such as metabolizing a previously unusable compound, building an amino acid previously unbuildable, or even antibiotic resistance. Plasmids are used in research to induce the expression of a gene usually not found in the given organism. For example, you can construct a plasmid with a bacterial promoter connected to the gene for a human protein through a process called 'cloning'. The plasmid with the human gene can then be introduced into bacteria by transforming a competent gram-negative with the plasmid. Usually the plasmid also has an antibiotic resistance gene in addition to the target gene. This antibiotic resistance can be used to select for bacteria containing the plasmid. For example, the most common resistance gene is ampicillin resistance gene. If you grow the transformed bacteria in a culture containing ampicillin, only bacteria containing the antibiotic resistance, and therefore containing the plasmid, can survive. This will ensure that what you have is a pure culture of bacteria containing the plasmid. After selection, these bacteria can be cultured in suitable media to increase their numbers to a point that their production of the human protein becomes appreciable. Then these bacteria are usually lysed (killed) to extract the protein. Sometimes, however, these bacteria can also be made to secrete the protein into the medium.
Who benefits from a mutation that causes antibiotic resistance in bacteria?
The bacteria benefits.
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.
How is antibiotic resistance an adaptation?
The trait giving bacteria antibiotic resistance has become common, giving bacteria with the trait a selective advantage.
When was Mutations of Bacteria from Virus Sensitivity to Virus Resistance created?
Mutations of Bacteria from Virus Sensitivity to Virus Resistance was created in 1943.
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
Which Biological agent susceptible to antibiotics but can develop resistance to them?
B- Bacteria
When bacteria are not affected by antibiotics they have?
They have resistance to the antibiotic.
What is a word meaning a bacteria has adapted to antibiotics?
Resistant or resistance is when a bacteria has adapted to an 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
Some bacteria strains may acquire resistance to antibiotics and or the ability to cause disease by acquiring what?
Some bacteria strains may acquire resistance to antibiotics and/or cause a new disease by gaining spores from other 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
