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Wirth: All efforts to identify a gene responsible for predisposing peo

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Wirth: All efforts to identify a gene responsible for predisposing peo  [#permalink]

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New post 10 Apr 2020, 01:37
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Wirth: All efforts to identify a gene responsible for predisposing people to manic-depression have failed. In fact, nearly all researchers now agree that there is no “manic-depression gene.” Therefore, if these researchers are right, any claim that some people are genetically predisposed to manic-depression is simply false.

Chang: I do not dispute your evidence, but I take issue with your conclusion. Many of the researchers you refer to have found evidence that a set of several genes is involved and that complex interactions among these genes produce a predisposition to manic-depression.

Which one of the following most accurately expresses Chang’s criticism of Wirth’s argument?


(A) It presupposes only one possibility where more than one exists.

(B) It depends on separate pieces of evidence that contradict each other.

(C) It relies on the opinion of experts in an area outside the experts’ field of expertise.

(D) It disallows in principle any evidence that would disconfirm its conclusion.

(E) It treats something that is merely unlikely as though it were impossible.

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Re: Wirth: All efforts to identify a gene responsible for predisposing peo  [#permalink]

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New post 16 Apr 2020, 11:17
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Bunuel wrote:

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Wirth: All efforts to identify a gene responsible for predisposing people to manic-depression have failed. In fact, nearly all researchers now agree that there is no “manic-depression gene.” Therefore, if these researchers are right, any claim that some people are genetically predisposed to manic-depression is simply false.

Chang: I do not dispute your evidence, but I take issue with your conclusion. Many of the researchers you refer to have found evidence that a set of several genes is involved and that complex interactions among these genes produce a predisposition to manic-depression.

Which one of the following most accurately expresses Chang’s criticism of Wirth’s argument?


(A) It presupposes only one possibility where more than one exists.

(B) It depends on separate pieces of evidence that contradict each other.

(C) It relies on the opinion of experts in an area outside the experts’ field of expertise.

(D) It disallows in principle any evidence that would disconfirm its conclusion.

(E) It treats something that is merely unlikely as though it were impossible.


So Wirth provides evidence to show no manic-depression genes exist. So he concludes, any claim that some people are genetically predisposed to manic-depression is simply false or impossible.

Chang responds that he agrees with the fact that indeed no maniac depression genes exist, but that doesn't mean that humans cannot be predisposed to Maniac depression through some other means. Chang disagrees with Wirth's " Simply false or impossible " conclusion and provides evidence how through another possibility , people can still be genetically predisposed to maniac depression.

So how does chang attack , Wirth's argument? He disagrees with Wirth's conclusion and provides an alternate way of how people can still be predisposed to maniac depression.

Options:

(A) It presupposes only one possibility where more than one exists : So Wirth assumes because of the evidence that there can be only one possibility i.e. People cannot be predisposed to maniac depression, well as Chang shows that , that is NOT the only possibility. People can still be genetically predisposed to maniac depression. KEEP.

(B) It depends on separate pieces of evidence that contradict each other : Chang does not point out contradictions in the evidence provided by Wirth, in fact Chang agrees with the evidence of Wirth INCORRECT.

(C) It relies on the opinion of experts in an area outside the experts’ field of expertise : Chang simply disagrees with Wirth's conclusion and provides another possibility.Chang does not raise a finger on any expert INCORRECT.

(D)It disallows in principle any evidence that would disconfirm its conclusion : Chang allows the evidence, in fact agrees with it hence, hence this is NOT how Chang Criticizes Wirth's argument INCORRECT.

(E) It treats something that is merely unlikely as though it were impossible : Although Chang disagrees with Wirth's " simply false / impossible" conclusion, Chang provides alternate conclusion. Hence this does not accurately sum up Chang's response. A is more accurate than E INCORRECT.

Ans-A

Hope it's clear.
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Re: Wirth: All efforts to identify a gene responsible for predisposing peo   [#permalink] 16 Apr 2020, 11:17

Wirth: All efforts to identify a gene responsible for predisposing peo

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