Since the routine use of antibiotics can give rise to : GMAT Critical Reasoning (CR)
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# Since the routine use of antibiotics can give rise to

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Since the routine use of antibiotics can give rise to [#permalink]

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25 Dec 2007, 03:26
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Since the routine use of antibiotics can give rise to resistant bacteria capable of surviving antibiotic environments, the presence of resistant bacteria in people could be due to the human use of prescription antibiotics. Some scientists, however, believe that most resistant bacteria in people derive from human consumption of bacterially infected meat.
Which of the following statements, if true, would most significantly strengthen the hypothesis of the scientists?

(A) Antibiotics are routinely included in livestock feed so that livestock producers can increase the rate of growth of their animals.

(B) Most people who develop food poisoning from bacterially infected meat are treated with prescription antibiotics.

(C) The incidence of resistant bacteria in people has tended to be much higher in urban areas than in rural areas where meat is of comparable quality.

(D) People who have never taken prescription antibiotics are those least likely to develop resistant bacteria.

(E) Livestock producers claim that resistant bacteria in animals cannot be transmitted to people through infected meat.

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25 Dec 2007, 03:41
My choice: A

A - Use of antibiotics in live stock results in antibiotics getting transferred to the consumers of meat. Although, this does not mean that reason for the presence of resistant bacteria in people is not prescription antibiotics, but, this looks like the best one.

B - This weakens the hypothesis.

C - irrelevant

D - Weakens the hypothesis

E - Weakens the hypothesis
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25 Dec 2007, 03:57
tarek99 wrote:
Since the routine use of antibiotics can give rise to resistant bacteria capable of surviving antibiotic environments, the presence of resistant bacteria in people could be due to the human use of prescription antibiotics. Some scientists, however, believe that most resistant bacteria in people derive from human consumption of bacterially infected meat.
Which of the following statements, if true, would most significantly strengthen the hypothesis of the scientists?

(A) Antibiotics are routinely included in livestock feed so that livestock producers can increase the rate of growth of their animals.

(B) Most people who develop food poisoning from bacterially infected meat are treated with prescription antibiotics.

(C) The incidence of resistant bacteria in people has tended to be much higher in urban areas than in rural areas where meat is of comparable quality.

(D) People who have never taken prescription antibiotics are those least likely to develop resistant bacteria.

(E) Livestock producers claim that resistant bacteria in animals cannot be transmitted to people through infected meat.

I will go for 'B'

P1 - Routine use of antibiotics ---> resistant bacteria ---> survive in anti-biotic environment

P2 - Resist. bacteria in people could be human use of prescription antiobiotics

P3 - Some scientists, believe most resist. bacteria in people derive from human consumption of bacterially infected meat.

Hypothesis is P3. which is people should consume bacterially infected meat and the bacteria based on P2 should go through prescribed antiobiotics to become a resistant bacteria

(A) - Antibiotics are given to the animals and not people. Moreover it is given to them for better growth and may or may not be for infection or disease. Anitobiotics can be for anything not only for a bacteria..

(B) - Strenghthens...

(C) - Weakens. meat qualitive is same, but the infection varies between Urban and rural areas

(d) - irrelevant... Describes different group of resistant bacteria. out of scope

(E) Weakens..
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25 Dec 2007, 04:13
OA is A. The reason is that option A confirms to the fact the anibiotics or the effects of antibiotics got transferred to humans by the consumption of the meat. Option B doesn't prove that antibiotics came directly from the consumption of meat. Humans had to take it seperately after consuming the meat. we want an answer choice that confirms to the fact that the effects of antibiotics came directly from the consumption of meat.
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25 Dec 2007, 04:36
tarek99 wrote:
OA is A. The reason is that option A confirms to the fact the anibiotics or the effects of antibiotics got transferred to humans by the consumption of the meat. Option B doesn't prove that antibiotics came directly from the consumption of meat. Humans had to take it seperately after consuming the meat. we want an answer choice that confirms to the fact that the effects of antibiotics came directly from the consumption of meat.

Blur...Blur...Please explain why we need to bother about antibiotics or 'effects of antiobiotics being transferred' to humans from meat consumption.

Any medicine or antibiotic meant for animals need not mean the same for humans.. In otherwords the vet. and GP should be using different kinds of medicines.. Is that not so ?? that is what I see in Discovery channels

Anyway if OA is indeed 'A' then we can't help it..
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25 Dec 2007, 04:55
After a very careful study, I think this is what it is..

Conclusion :- Some scientists, however, believe that most resistant bacteria in people derive from human consumption of bacterially infected meat.

Which means, the bacteria when being consumed along with the meat is already an resistant bacteria, as it has successfully resisted animal antiobiotics, and it has stayed alive/active in the meat to infect the humans. It is another fact, whether they may or may not be able to resist human antiobiotics.

By which 'A' really makes sense.
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25 Dec 2007, 07:54
exactly
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25 Dec 2007, 08:48
late, but say A
25 Dec 2007, 08:48
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