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Sickle cell anemia

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by gmat009 » Tue Sep 23, 2008 10:43 pm
People who inherit the sickle cell anemia gene from only one parent seem to be resistant to malaria, an evolutionary advantage that may explain why a genetic condition so debilitating to many individuals has survived in the human population.
(A) seem to be resistant to malaria,
(B) seemingly are resistant to malaria,
(C) seem to be resistant to malaria and have
(D) seemingly are resistant to malaria and to have
(E) are, it seems, resistant to malaria, and they have

Which one is better A or C and Why
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by 4meonly » Wed Sep 24, 2008 12:19 am
I think C

People who inherit .....X...... seem to be resistant to malaria and have ......Y....... that may explain ...........
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by gmat009 » Wed Sep 24, 2008 7:38 am
4meonly wrote:I think C

People who inherit .....X...... seem to be resistant to malaria and have ......Y....... that may explain ...........
I also picked C but OA is A.
Can someone plz. explain
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by s_kaks » Wed Sep 24, 2008 8:47 pm
It should be C,

IMO A says Malaria is an evolutionary advantage whereas it should be people who inherit the sickle cell anemia have an evolutionary advantage
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Re: Sickle cell anemia

by wonder » Wed Sep 24, 2008 8:58 pm
gmat009 wrote:People who inherit the sickle cell anemia gene from only one parent seem to be resistant to malaria, an evolutionary advantage that may explain why a genetic condition so debilitating to many individuals has survived in the human population.
(A) seem to be resistant to malaria,
(B) seemingly are resistant to malaria,
(C) seem to be resistant to malaria and have
(D) seemingly are resistant to malaria and to have
(E) are, it seems, resistant to malaria, and they have

Which one is better A or C and Why
At first glance, the modifier "an inherent advantage" modifies malaria..and we may choose C because of this reason. But C changes the intended meaning by putting an 'and'.

B - "Seemingly are" is incorrect usage
C - "Seem to be resistant to malaria and have" implies 2 conditions which is not intended
D - improper usage ( "Seemingly are" and "to have")
E - awkward construction and implies 2 conditions
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by vivek.kapoor83 » Wed Sep 24, 2008 9:26 pm
IMO A..
b & d - seemingly doesn't work here.
c- and act as 2 diff conditons while, second part is the elboration of 1st.So,worng
e - akward construction.
So A
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by Stacey Koprince » Wed Oct 01, 2008 7:48 am
I received a PM asking me to respond to this question.

When you have a structure such as this one, the stuff after the comma refers to the entire preceding clause - people resistant to malaria - not just to the disease malaria itself. You don't have the typical markers of a noun modifier right after the comma (eg, which, that). Instead, it just goes straight into a noun (advantage) plus modifier (that may explain). This is a somewhat unusual structure, but if you do see it, know that it is more "flexible" than your standard noun modifiers and refers to the independent part of the sentence as a whole, not just the closest noun.

And, yes, C does change the meaning. C seems to say that having the sickle cell thing results in two separate things: (1) resistance to malaria, and (2) some evolutionary advantage that isn't really fully explained. But, of course, #2 is really talking about #1 - the advantage is the resistance to malaria.
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