A. Are Koch's postulates still valid today? How would we use them to establish the relationship between a specific microbe and a disease.

B. How has microbiology contributed to the advancement in molecular biology?

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Jean KeelingLv2

28 May 2019

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Related questions

You are trying to fulfill the criteria of Koch's postulates to establish a causative link between a microbe and a disease. You have isolated a microbe from a diseased host and grown it in pure culture, but when you introduce the microbe into a healthy host, no disease occurs. Provide at least two possible explanations.

blacklion206

A patient sample is sent to the lab and gram stained

some cells look pink, the others weakly purple.it is called 'Gram indeterminate'

Furthermore, the culture grows slowly and looks clumpy.

What might be found in the cell wall of this bacteria to directly cause these results?

1-Mycolic acid

2-Outer membrane

3-LPS

4-Peptidoglycans

You are trying to conjugate bacterial population A with the gene for ampicillin resistance to bacterial population B., which lacks the ampicillin resistance. After multiple attempts at conjugation, population B is still sensitive to ampicillin. Which is the more likely explanation?

1- Population A doesn't have pili

2- Population A does have fimbriae

3- Population has an axial filament

4- Population B does not have flagella

Please explain

3- The fact that bacteria can absorb dye molecule that animal cells do not led to what advance in microbiology?

1-Fleming's discovery of penicillin

2-The formation of Koch's postulates

3-Lister's development of aseptic technique

4-Erich development the antimicrobial Salvarsan

QUESTION 7

An association between populations that eat more fish and alower mortality rate from coronary heart disease in the samepopulation would establish which of the following:

	A.	A group association that may be helpful in generating ahypothesis about the relationship between fish consumption andcoronary heart disease.
	B.	An individual association establishing that eating fish isassociated with coronary artery disease.
	C.	A cause and effect relationship between fish consumption andcoronary heart disease.
	D.	None of these are correct.