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Are Antibiotic resistance evolved through the process of natural selection acting upon random mutation?
Yes, antibiotic resistance typically arises through a combination of random mutations in bacteria's genetic material and natural selection favoring those bacteria that have mutations conferring resistance to antibiotics. Over time, these resistant bacteria survive and multiply, leading to the emergence of antibiotic-resistant strains.
What treatment is used for actinobacillus in horses?
Actinobacillus is a bacterial species that can cause infections in horses. Depending upon the species of the bacteria and the location of the infection in the horse, a veterinarian may try any of several antibiotics based upon the bacteria's antibiotic sensitivity profile. However, Actinobacillus sometimes gets into the bone where it is very difficult to treat.
What the advantage that bacteria and fungi gain from synthesis of antibiotic?
Bacteria and fungi produce antibiotics as a means of survival and competition. By synthesizing these compounds, they can inhibit the growth of neighboring microorganisms, thereby reducing competition for resources such as nutrients and space. This ability allows them to establish dominance in their ecological niches and increases their chances of survival and reproduction. Additionally, antibiotic production can help protect them from being preyed upon by other organisms.
What is an explanation of how antibiotic resistance occurs?
Bacterial resistances are developed due to mutations that are passed down from generations of bacteria. Antibiotics generally kill all but the strongest bacteria or bacteria that have resistances to these antibiotics, resulting in only these bacteria reproducing, passing on the antibiotic resistances to future generations. Over time, entire populations of bacteria can develop a resistance to an antibiotic if they are frequently exposed to it. Bacterial resistances are developed due to mutations that are passed down from generations of bacteria. Antibiotics generally kill all but the strongest bacteria or bacteria that have resistances to these antibiotics, resulting in only these bacteria reproducing, passing on the antibiotic resistances to future generations. Over time, entire populations of bacteria can develop a resistance to an antibiotic if they are frequently exposed to it. Bacterial resistances are developed due to mutations that are passed down from generations of bacteria. Antibiotics generally kill all but the strongest bacteria or bacteria that have resistances to these antibiotics, resulting in only these bacteria reproducing, passing on the antibiotic resistances to future generations. Over time, entire populations of bacteria can develop a resistance to an antibiotic if they are frequently exposed to it.
What if a agar plate is isolated and antibiotic added and result is no growth or inhibition?
This is basically ANTIBIOTIC SENSITIVITY TEST, to test whether the given organism is RESISTANT(no zone of inhibition) or SENSITIVE( zone of inhibition) to the given antibiotic.Zone of Inhibition Testing is a fast, qualitative means to measure the ability of an antimicrobial agent to inhibit the growth of microorganisms.The effectiveness is based upon the size of zone of inhibition,diffusability of antibiotic,size of inoculum,type of media used.example: bacillus organism is inoculated with both PENICILLIN and AMPICILLIN ,zone of inhibition is absent in case of penicillin and present in case of ampicillin, this shows that ampicillin (sensitive) worked effectively when compared to penicillin.
How can specialized transduction contribute to the transfer of antibiotic resistance genes in a bacterial population?
Specialized transduction involves the transfer of a specific set of bacterial genes by a temperate bacteriophage during its lysogenic cycle. If the bacteriophage integrates into the bacterial chromosome near antibiotic resistance genes, they can be co-transferred to other bacteria upon phage infection. This process can facilitate the spread of antibiotic resistance genes within a bacterial population.
What is the bacteria which act upon waste water in presence of air?
aerobic bacteria
You have taken two control.One with LB media only and other with LB plus kanamycin.LB plus kanamycin showed growth upon incubation. what could be the reason?
This means the bacteria that you are handling is resistant to kanamycin and can therefore grow in the presence of this antibiotic. You have to check if there are colonies on the control plate containing only LB medium. If there are colonies, then this reasoning is valid. A possible reason why bacteria can grow in the presence of kanamycin is they could have a plasmid that is conferring antibiotic resistance. However, this is only a hypothesis and further investigation (like plasmid isolation) is required to confirm it.
Make a sentence for these words antiseptic antibiotic antonym and antivirus?
The antibiotic and anti-virus worked like antonyms on the man's infections, while the antiseptic was like a charm upon the man's teeth.
What do immunty mean?
Immunity refers to the ability of the body to protect itself from foreign substances, such as bacteria and viruses, and prevent infection or disease. The immune system recognizes and destroys harmful pathogens while also remembering these invaders to provide a quicker and more effective response upon future encounters.
What bacteria is most affected by antibiotics?
Well, there is no specific answer for this question. In reality, it all depends on what group the antibiotic is from. Some antibiotics, like Zinnat, are used to treat chest colds and sinusitis, though others are used to treat other bacterial infections, depending upon the group of antibiotics.
Do antibiotics work on fungus'?
Yes; antibiotics kill both the harmful and the good bacteria in the body. Since the candida which causes yeast infection naturally occurs it can occasionally grow back faster than the good bacteria which would normally keep it from spreading if that good bacteria is being killed off by antibiotics. Even antibacterial soaps can lead to yeast infection.
