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A certain tropical island received food donations in the form of

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A certain tropical island received food donations in the form of [#permalink]

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New post 09 Oct 2007, 20:14
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Which of the following most logically completes the passage?

A certain tropical island received food donations in the form of powdered milk for distribution to its poorest residents, who were thought to be malnourished. Subsequently, the rate of liver cancers among those islanders increased sharply. The donated milk was probably to blame: recent laboratory research on rats has shown that rats briefly exposed to the substances aflatoxin tend to develop liver cancer when fed casein, a milk protein. This result is relevant because _______.

(A) in the tropics, peanuts, a staple of these island residents, support a mold growth that produces aflatoxin

(B) the liver is more sensitive to carcinogens, of which aflatoxin may be one, than most other bodily organs

(C) casein is not the only protein contained in milk

(D) powdered milk is the most appropriate form in which to send milk to a tropical destination

(E) the people who were given the donated milk had been screened for their ability to digest milk
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 09 Oct 2007, 20:31
bkk145 wrote:
Which of the following most logically completes the passage?

A certain tropical island received food donations in the form of powdered milk for distribution to its poorest residents, who were thought to be malnourished. Subsequently, the rate of liver cancers among those islanders increased sharply. The donated milk was probably to blame: recent laboratory research on rats has shown that rats briefly exposed to the substances aflatoxin tend to develop liver cancer when fed casein, a milk protein. This result is relevant because _______.

A. in the tropics, peanuts, a staple of these island residents, support a mold growth that produces aflatoxin
B. the liver is more sensitive to carcinogens, of which aflatoxin may be one, than most other bodily organs
C. casein is not the only protein contained in milk
D. powdered milk is the most appropriate form in which to send milk to a tropical destination
E. the people who were given the donated milk had been screened for their ability to digest milk


This one made me think twice...


I take A on this one. rest all are irrelavant.
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 09 Oct 2007, 20:41
I am in for A as well..all others dont have relevance
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 09 Oct 2007, 22:13
Ans is A; it is the only statement that logically supports the causality in the hypothesis.
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 09 Oct 2007, 22:45
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bkk145 wrote:
Which of the following most logically completes the passage?

A certain tropical island received food donations in the form of powdered milk for distribution to its poorest residents, who were thought to be malnourished. Subsequently, the rate of liver cancers among those islanders increased sharply. The donated milk was probably to blame: recent laboratory research on rats has shown that rats briefly exposed to the substances aflatoxin tend to develop liver cancer when fed casein, a milk protein. This result is relevant because _______.

A. in the tropics, peanuts, a staple of these island residents, support a mold growth that produces aflatoxin
B. the liver is more sensitive to carcinogens, of which aflatoxin may be one, than most other bodily organs
C. casein is not the only protein contained in milk
D. powdered milk is the most appropriate form in which to send milk to a tropical destination
E. the people who were given the donated milk had been screened for their ability to digest milk


This one made me think twice...


Im not sure. i don't know why A. Doesn't A say that milk wasn't the cause???
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 09 Oct 2007, 22:53
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GMATBLACKBELT wrote:
bkk145 wrote:
Which of the following most logically completes the passage?

A certain tropical island received food donations in the form of powdered milk for distribution to its poorest residents, who were thought to be malnourished. Subsequently, the rate of liver cancers among those islanders increased sharply. The donated milk was probably to blame: recent laboratory research on rats has shown that rats briefly exposed to the substances aflatoxin tend to develop liver cancer when fed casein, a milk protein. This result is relevant because _______.

A. in the tropics, peanuts, a staple of these island residents, support a mold growth that produces aflatoxin
B. the liver is more sensitive to carcinogens, of which aflatoxin may be one, than most other bodily organs
C. casein is not the only protein contained in milk
D. powdered milk is the most appropriate form in which to send milk to a tropical destination
E. the people who were given the donated milk had been screened for their ability to digest milk


This one made me think twice...


Im not sure. i don't know why A. Doesn't A say that milk wasn't the cause???


from A we do not know that the aflatoxins in peanuts have anything to do with the liver cancers. all A tells us is aflatoxin from the peanuts is already present in the diets of these residents. the rat relationship is to say that the aflatoxin in milk protein causes cancer. kinda inverted logic.

x = aflatoxins in milk protein
y = aflatoxins in peanuts

not y then x
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 10 Oct 2007, 05:16
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I pick A.

The way I read it, the stem says that the rats developed liver cancer when fed casein, which is a milk protein. However, the stem argues that this happened because the rats were already exposed to aflatoxin.

Thus the argument is that for rats who are exposed to aflatoxin and then fed casein, liver cancer develops.

Similary, if the humans in the tropics are already exposed to aflatoxin, and then consume the powdered milk which contains casein, liver cancer develops as well
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 10 Oct 2007, 06:07
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OA=A

The argument asks how the experiment related to what cause the cancer in the island. In an ordinary CR question, I would try to find the relationship between the experiment and the milk. However, this isn't the case. Since milk cause cancer on the island, the experiment is relevant because it might be that Peanuts is the cause of the cancer on the island.
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 24 Oct 2007, 17:53
Great explanation BKK, i would like to add just what's stated in the passage, that after the donation of the milk, the islanders sow a sharp increase in liver cancer. Becasue of that they explaioned the experiment with milk, and because the nuts have the same ingredient as milk, it made the cases of liver cancer rise.
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 25 Oct 2007, 04:09
michaelny2001 wrote:
Great explanation BKK, i would like to add just what's stated in the passage, that after the donation of the milk, the islanders sow a sharp increase in liver cancer. Becasue of that they explaioned the experiment with milk, and because the nuts have the same ingredient as milk, it made the cases of liver cancer rise.


Michealny2001 - indeed great point by you.. I did not concentrate on words "incereased sharply".
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 20 Jan 2013, 07:39
why is the answer not E folks?
kindly help..
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 20 Jan 2013, 08:00
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Hi Sachin,

Let me see if I can help. Simply the passage is saying:

Milk was imported to the island

People on the island got liver cancer.

This is blamed on the imported milk.

Because research has shown that if people have milk protein and aflatoxin.


SO

We know they have milk, we know they have cancer, we need an answer that also tells us they have aflatoxin. Answer A does that.

E tells us nothing about the existence of aflatoxin without which, the conclusion is not valid

Hope that helps.

James
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 20 Jan 2013, 08:13
plumber250 wrote:
Hi Sachin,

Let me see if I can help. Simply the passage is saying:

Milk was imported to the island

People on the island got liver cancer.

This is blamed on the imported milk.

Because research has shown that if people have milk protein and aflatoxin.


SO

We know they have milk, we know they have cancer, we need an answer that also tells us they have aflatoxin. Answer A does that.

E tells us nothing about the existence of aflatoxin without which, the conclusion is not valid

Hope that helps.

James


Hi James,
I believe we are trying to weaken the claim that aflatoxin caused cancer.

how does A weaken?
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 20 Jan 2013, 08:19
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Hi Sachin,

that's not as I see it.

We are asked to logically conclude the passage

The passage's conclusion is that the introduction of milk caused the increase in cancer.

We need to find out the reason why they think this.

The combination of the info in the question and the info given in A does that:

Question: aflatoxin + milk protein causes cancer. Milk (and hence milk protein) was given to the islanders.

All we are missing is the presence of aflatoxin...

Option A: Islanders have aflatoxin through eating peanuts
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 16 Sep 2014, 07:05
I thought option B as correct. But it was wrong.
It says:
the liver is more sensitive to carcinogens, of which aflatoxin may be one, than most other bodily organs

When liver is more sensitive, it will get the the fault easier.
This option might be wrong because it says of which aflatoxin may be one!! Means aflatoxin might or might not b the one to which the liver is more sensitive.
Please correct me if I am wrong.

bkk145 wrote:
Which of the following most logically completes the passage?

A certain tropical island received food donations in the form of powdered milk for distribution to its poorest residents, who were thought to be malnourished. Subsequently, the rate of liver cancers among those islanders increased sharply. The donated milk was probably to blame: recent laboratory research on rats has shown that rats briefly exposed to the substances aflatoxin tend to develop liver cancer when fed casein, a milk protein. This result is relevant because _______.

A. in the tropics, peanuts, a staple of these island residents, support a mold growth that produces aflatoxin
B. the liver is more sensitive to carcinogens, of which aflatoxin may be one, than most other bodily organs
C. casein is not the only protein contained in milk
D. powdered milk is the most appropriate form in which to send milk to a tropical destination
E. the people who were given the donated milk had been screened for their ability to digest milk


This one made me think twice...

Edit: by carcass

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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 30 Dec 2014, 15:12
Premise: Cassein+aflotoxin= Liver cancer.
Conclusion: we need aflotoxin and only option A does that
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 13 Jun 2015, 00:15
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Which of the following most logically completes the passage?

P1: A certain tropical island received food donations in the form of powdered milk for distribution to its poorest residents, who were thought to be malnourished. [milk distributed to malnutrition people]
Subsequently, the rate of liver cancers among those islanders increased sharply. [Post that liver cancer increases]

The donated milk was probably to blame: recent laboratory research on rats has shown that rats briefly exposed to the substances aflatoxin tend to develop liver cancer when fed casein, a milk protein.
[Aflatoxin + casein -> LC ]
This result is relevant because _______.

>>Just think abt this argument as a normal day conversation with ur friend. We need a answer which can take this discussion forward...

A. in the tropics, peanuts, a staple of these island residents, support a mold growth that produces aflatoxin
>> Correct.
B. the liver is more sensitive to carcinogens, of which aflatoxin may be one, than most other bodily organs
>> Comparison with other organ doesnt matter. V need to link with AF with MP.
C. casein is not the only protein contained in milk
>> V dont care abt other protein.
D. powdered milk is the most appropriate form in which to send milk to a tropical destination
>> Irrelevant.
E. the people who were given the donated milk had been screened for their ability to digest milk
>> Irrelevant
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 20 May 2016, 14:28
options B,C,D and E are out of scope or irrelevant options
only option A correctly explains the cause for liver cancer so it is the correct answer
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 20 May 2016, 15:15
bkk145 wrote:
Which of the following most logically completes the passage?

A certain tropical island received food donations in the form of powdered milk for distribution to its poorest residents, who were thought to be malnourished. Subsequently, the rate of liver cancers among those islanders increased sharply. The donated milk was probably to blame: recent laboratory research on rats has shown that rats briefly exposed to the substances aflatoxin tend to develop liver cancer when fed casein, a milk protein. This result is relevant because _______.

A. in the tropics, peanuts, a staple of these island residents, support a mold growth that produces aflatoxin
B. the liver is more sensitive to carcinogens, of which aflatoxin may be one, than most other bodily organs
C. casein is not the only protein contained in milk
D. powdered milk is the most appropriate form in which to send milk to a tropical destination
E. the people who were given the donated milk had been screened for their ability to digest milk


This one made me think twice...

Edit: by carcass


Conclusion is that milk is probably causing liver cancer. One evidence is given that rats fed with milk protein when exposed to aflatoxin developed liver cancer.

In order to complete the argument we need to show that island residents were exposed to aflatoxin while consuming milk.

A. in the tropics, peanuts, a staple of these island residents, support a mold growth that produces aflatoxin. This is what we were looking for
B. the liver is more sensitive to carcinogens, of which aflatoxin may be one, than most other bodily organs It does'nt support how residents are exposed to aflatoxin
C. casein is not the only protein contained in milk Not talking about aflatoxin
D. powdered milk is the most appropriate form in which to send milk to a tropical destination. good for residents, not for us :P
E. the people who were given the donated milk had been screened for their ability to digest milk. screening does tell us anything about aflatoxin
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Re: A certain tropical island received food donations in the form of [#permalink]

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New post 25 Jan 2017, 11:23
Lets summarize the argument:-
Powdered milk given to tropical islanders -> rate of Liver cancer increased.
Conclusion :- Milk powder caused cancer because same effect was seen in case of rats who were fed CASEIN (milk protein found in milk obviously) and exposed to AFLATOXIN.
So, in case of rats : AFLATOXIN + CASEIN (found in milk) -> cancer;
Now if the cancer incidence in islanders is attributed to milk powder intake by considering analogy of the incidence in rats, then obviously other component (in the highlighted part) AFLATOXIN must also be involved.
Option A exactly tells us this – “peanuts, a staple of these island residents, support a mold growth that produces aflatoxin”.
This means that islanders consumed AFLATOXIN as well as CASEIN (exactly like rats) that lead to cancer.
Re: A certain tropical island received food donations in the form of   [#permalink] 25 Jan 2017, 11:23

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