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# Inference Revision: Albinism is a rare genetic condition that

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Inference Revision: Albinism is a rare genetic condition that  [#permalink]

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14 Feb 2015, 01:13
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Difficulty:

5% (low)

Question Stats:

88% (01:20) correct 12% (01:49) wrong based on 598 sessions

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Albinism is a rare genetic condition that inhibits the production of melanin, or pigmentation, in the skin and hair. People born with albinism are unusually susceptible to sunburn, melanoma, and a range of other health issues that are generally connected to excessive exposure to the sun. The statements above, if true, provide the most support for which of the following conclusions?

A. People born with albinism develop other biological protections against melanoma and other sun-related health issues.

B. Humans with a high production of melanin can easily ignore health issues related to exposure to the sun.

C. When a non-albino person gets sunburn, the amount of melanin produced by that person decreases.

D. In humans, melanin plays a role in protecting the skin from developing sunburn and other sun-related ailments.

E. It is not possible for a person born with albinism to adopt other artificial protective measures against excessive exposure to the sun.

Spoiler: :: OE
This argument provides that albinos, or people whose bodies do not produce
melanin, are unusually susceptible to solar exposure. This suggests a connection
between the production of melanin in humans and protection from sunburn and
other sun-related ailments; we should look for a conclusion that draws this
connection.
(A) The argument does not indicate that people born with albinism somehow
develop other natural defenses against sun-related health issues.
(B) This conclusion is too extreme to be supported by the argument; nothing in
the argument suggests that humans whose bodies produce high levels of
melanin can "easily ignore" sunburn or other sun-related health issues.
(C) There is no indication in the argument that sunburn reduces melanin
production.
(D) CORRECT. The argument does strongly suggest that melanin plays some
role in protecting the skin from developing sunburn and other sun-related
ailments, since albinos do not produce melanin and are unusually susceptible to
sun-related ailments.
(E) It is not suggested in the argument that an albino person could not protect
him or herself from solar exposure through artificial means, e.g. wearing
protective clothing or powerful sunblock.

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Re: Inference Revision: Albinism is a rare genetic condition that  [#permalink]

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14 Feb 2015, 05:17
1
The argument states that albinism inhibits the production of melanin and those with albinism are unusually susceptible to sun-related illnesses.
Therefore, increasing the production of melanin decreases the possibilities of receiving these illnesses, so melanin must play a crucial role in preventing them.

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Posts: 85
Re: Inference Revision: Albinism is a rare genetic condition that  [#permalink]

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15 Feb 2015, 00:55
1
B or D..
Premesis do not state that Albinism is not the only cause for sun burns. It states as if it is also one of the causes.

B is little extreme as it states "melanin can easily ignore health issues ". There might be other causes as well.
D states that "melanin plays a role" which means that it is one of the causes that coincides with premesis.
Current Student
Joined: 31 Mar 2014
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Location: India
Re: Inference Revision: Albinism is a rare genetic condition that  [#permalink]

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15 Feb 2015, 04:14
2
Albinism is a rare genetic condition that inhibits the production of melanin, or pigmentation, in the skin and hair. People born with albinism are unusually susceptible to sunburn, melanoma, and a range of other health issues that are generally connected to excessive exposure to the sun. The statements above, if true, provide the most support for which of the following conclusions?

A. People born with albinism develop other biological protections against melanoma and other sun-related health issues.
Wrong it is no where mentioned about other biological protections

B. Humans with a high production of melanin can easily ignore health issues related to exposure to the sun.
Wrong. The Cr passage mentions that condition that inhibits the production of melanin will lead to sunburn. So it can be interpreted that normal production of melanin will help in removing health issues. But what will happen when high production of melanin wil be there is not mentioned and is doubtful from the passage.
C. When a non-albino person gets sunburn, the amount of melanin produced by that person decreases.
Wrong, because the amount of melanin produced on getting sun-burn is not discussed for non-albino person, nor for albino person.
D. In humans, melanin plays a role in protecting the skin from developing sunburn and other sun-related ailments.
Contender
E. It is not possible for a person born with albinism to adopt other artificial protective measures against excessive exposure to the sun.
Again this is not mentioned whether he can adopt or he cannot.

Hence D is correct.

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Current Student
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GMAT 1: 760 Q50 V42
GPA: 3.8
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Inference Revision: Albinism is a rare genetic condition that  [#permalink]

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15 Feb 2015, 07:07

Official Solution:

This argument provides that albinos, or people whose bodies do not produce melanin, are unusually susceptible to solar exposure. This suggests a connection between the production of melanin in humans and protection from sunburn and other sun-related ailments; we should look for a conclusion that draws this connection.

(A) The argument does not indicate that people born with albinism somehow develop other natural defenses against sun-related health issues.

(B) This conclusion is too extreme to be supported by the argument; nothing in the argument suggests that humans whose bodies produce high levels of melanin can "easily ignore" sunburn or other sun-related health issues.

(C) There is no indication in the argument that sunburn reduces melanin production.

(D) CORRECT. The argument does strongly suggest that melanin plays some role in protecting the skin from developing sunburn and other sun-related ailments, since albinos do not produce melanin and are unusually susceptible to sun-related ailments.

(E) It is not suggested in the argument that an albino person could not protect him or herself from solar exposure through artificial means, e.g. wearing protective clothing or powerful sunblock.
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Joined: 31 Aug 2014
Posts: 15
Re: Inference Revision: Albinism is a rare genetic condition that  [#permalink]

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24 Feb 2015, 03:48
d -only option d comes under the category "must be true" .Other options may be or may not be true.
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Re: Inference Revision: Albinism is a rare genetic condition that  [#permalink]

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31 Jul 2018, 11:04
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Inference Revision: Albinism is a rare genetic condition that &nbs [#permalink] 31 Jul 2018, 11:04
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