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marijuana thing

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marijuana thing [#permalink] New post 06 Jul 2005, 05:57
An ingredient in marijuana known as THC has been found to inactivate herpesviruses in experiments. In previous experiments researchers found that inactivated herpesviruses can convert healthy cells into cancer cells.
It can be concluded that the use of marijuana can cause cancer.

Which one of the following, if true, most seriously weakens the argument?

(A) Several teams of scientists performed the various experiments and all of the teams had similar results.

(B) The carcinogenic effect of THC could be neutralized by the other ingredients found in marijuana.

(C) When THC kills herpesviruses it weakens the immune system, and it might thus diminish the body’s ability to fight other viruses, including viruses linked to cancers.

(D) If chemists modify the structure of THC, THC can be safely incorporated into medications to prevent herpes.

(E) To lessen the undesirable side effects of chemotherapy, the use of marijuana has been recommended for cancer patients who are free of the herpesvirus.
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 [#permalink] New post 06 Jul 2005, 06:21
I will go with E
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 [#permalink] New post 06 Jul 2005, 06:32
between B and E,

I pick E.
IF marijuana can cause cancer, yet patients on chemoterapy(herpesvirus free though) are advised to take marijuana to lessen undesirble effects of chemo, then marijuana may not cause cancer
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 [#permalink] New post 06 Jul 2005, 08:19
E should be it.
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 [#permalink] New post 06 Jul 2005, 08:47
yes the answer should be E.

The sweeping conclusion states that Marijuana causes cancer. The assumption is that Marijuana inactivates Herpes virus. And Inactivated herpes virus causes cancer. If a person does not have herpes, then a person won't get cancer. Besides, when doctors recommend the use of Marijuana for patients who don't have herpes virus, for the treatment of cancer, it logically means that Marijuana doesn't cause cancer.
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Re: marijuana thing [#permalink] New post 06 Jul 2005, 10:07
Picked B.

It is the property of marijuana as a whole and not just it's constituents which is of a concern for the causal relationship.

Like saying, since a chemical compount derived from a harmful element, the compound is also always harmful.

HMTG.
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 [#permalink] New post 06 Jul 2005, 10:42
Agree with HMTG. it is B
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 [#permalink] New post 06 Jul 2005, 20:58
well..between B&E, I was cornered to chose E.

OA is B.
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 [#permalink] New post 07 Jul 2005, 00:01
Dan wrote:
well..between B&E, I was cornered to chose E.

OA is B.

Any OE, how does the OE refute E
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 [#permalink] New post 07 Jul 2005, 04:04
rthothad wrote:
Dan wrote:
well..between B&E, I was cornered to chose E.

OA is B.

Any OE, how does the OE refute E


E) strengthens the arg. the arg states that ppl with herpes and THC in their blood are in danger to develop cancer. why ? because THC inactivates herpesviruses. and now ? ppl, who have herpes, shouldnt smoke marijuana. thats partly what E) says. it is recommended that ppl smoke marijuana. BUT only those who have no herpes. otherwise the effect would be totaly different.
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 [#permalink] New post 07 Jul 2005, 04:53
christoph wrote:
E) strengthens the arg. the arg states that ppl with herpes and THC in their blood are in danger to develop cancer. why ? because THC inactivates herpesviruses. and now ? ppl, who have herpes, shouldnt smoke marijuana. thats partly what E) says. it is recommended that ppl smoke marijuana. BUT only those who have no herpes. otherwise the effect would be totaly different.


Thanks Christoph
  [#permalink] 07 Jul 2005, 04:53
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