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-How does resistance to antibiotics occur in bacteria? -List and know what can b

ID: 255984 • Letter: #

Question

-How does resistance to antibiotics occur in bacteria? -List and know what can bacteria produce or change to become resistant ( mechanisms of resistance)? -What promotes antibiotic resistance in populations? -What are CRE bacteria? Why are they so dangerous? -How does resistance to antibiotics occur in bacteria? -List and know what can bacteria produce or change to become resistant ( mechanisms of resistance)? -What promotes antibiotic resistance in populations? -What are CRE bacteria? Why are they so dangerous? -List and know what can bacteria produce or change to become resistant ( mechanisms of resistance)? -What promotes antibiotic resistance in populations? -What are CRE bacteria? Why are they so dangerous?

Explanation / Answer

Ans- Resistance in bacteria occurs when that bacteria change in a way that lower or reduce the effects of that specific drug and that drug lost its ability to kill bacteria.

*Changes which can occurs-

1. Mutations in the DNA of bacteria(mostly)

2. Antibiotic resistance gene transfer

3.formation of outer coat

* Gene mobility promotes antibiotic resistance in populations. It occurs by HGT ( horizontal gene transfer)

* CRE bacteria:-

It is a type of gram negative bacteria. CRE ( carbapenem resistance enterobacteriaceae). It is a common bacteria found in human intestine .

It is so dangerous because it have developed resistance to many of antibiotics. It is very difficult to kill this bacteria and over come to it.