fill in the blank question

jamesk486 · Posted: Fri Jun 01, 2007 4:40 pm Post subject: fill in the blank question

Mars (Fill in): It is theoretically possible that bacteria developed on Mars early in its history and that some were carried to Earth by a meteorite. However, strains of bacteria from different planets would probably have substantial differences in protein structure that would persist over time, and no two bacterial strains on Earth are different enough to have arisen on different planets. So______________________________________________.
(What would be the best option to complete the passage?)
A. Whether or not bacteria actually developed on Mars.
B. Its likely it is that Martian bacteria were transported from Earth.
C. Martian bacteria could have been carried to Earth by means other than meteorites.
D. All bacteria now on Earth could have arisen from transported Martian bacteria.
E. There could have been strains of bacteria that originated on Earth and later died out.

jayhawk2001 · Posted: Fri Jun 01, 2007 6:52 pm Post subject: Re: fill in the blank question

800GMAT · Posted: Mon Jun 11, 2007 10:58 pm Post subject:

IMO C

rocky · Posted: Thu Jun 14, 2007 11:29 pm Post subject:

With Jayhawkk --D is answer

800GMAT · Posted: Fri Jun 15, 2007 10:02 am Post subject:

jamesk486, what is the OA...

isisalaska · Posted: Fri Jun 15, 2007 11:33 am Post subject:

Statement said it is almost impossible bacteria on Earth is frpm Mars. But the direction changes when the passage says that the difference in protein structure from different planets will persist over time, but it is not the case on Earth. So the bacteria can’t be form Mars, that take scare of C, D . E is out of scope. B also, we not questioning Martian bacteria in Mars, I would; say A even though I am not 100% convinced

jayhawk2001 · Posted: Fri Jun 15, 2007 1:07 pm Post subject:

isisalaska · Posted: Fri Jun 15, 2007 2:03 pm Post subject:

Yes, maybe I went to far infering, I though that It is theoretically possible that bacteria developed on Mars you could assume that bacteria is from Mars, but now I have second thoughts because one thing is "being developed somewhere" and another "being from somewhere". Maybe bacteria was from a different planet and developed in Mars, or maybe bacteria was from Mars...I don't know...what is right answer? Shocked

jrbrown2 · Posted: Tue Jun 19, 2007 6:49 pm Post subject:

If no two bacterial strains on Earth are different enough to have arisen on different planets, then either all the bacteria strains came from another planet or

a)Bacteria could have developed from another planet but didn't reach Earth,
b)Bacteria wasn't developed at all. (Remember the statement is unclear whether these actually happened or not but stated that these two events were possible)

So A or D. I'm going with A (is that the exact wording of the answer choice? it sounds incomplete).

jan08 · Posted: Sat Dec 08, 2007 4:51 pm Post subject:

IMO A..here is why:

the conclusion states that "no two bacterial strains on Earth are different enough to have arisen on different planets"
and it has been said that "strains of bacteria from different planets would probably have substantial differences in protein structure"

Now there could only be 1 option...either all the bacterias on earth are from Mars or none of them are from Mars...and A is only option that states that...though D is close but can be negated becoz it is imp that where the bacteria is developed rather than the mode of transportation...

OA pl. ?

sankruth · Posted: Fri Dec 14, 2007 2:45 am Post subject:

I would go for D.
The passage says that all of earth’s have a similar protein structure and hence should be from one source. Therefore it should all be from earth or all from mars. D paraphrases this correctly. By saying ‘All bacteria could have arisen’ it leaves the room for a possibility that perhaps all bacteria may not have arisen from Mars and hence arisen from earth or any other planet.
A – Incorrect. The sentence does not make sense.
B – Incorrect. The statement allows interpretation that there is both bacteria originated from mars and earth currently on earth. We know this is not true as all bacteria seem to have come from one source.
C – Incorrect. Mode of transportation is not the point of the argument.
E – Incorrect. Goes out of scope of the argument.

Riggz · Posted: Thu Dec 20, 2007 7:57 pm Post subject:

I also think D

sibbineni · Posted: Mon Jan 21, 2008 4:38 pm Post subject:

The Question states the bacteria on the earth have same protein structure even though they have arisen by different planets.But bacteria on different planets have different protein structures.

so the bacteria on the earth have been transported by the same planet ie Mars

(D) only satisfies the above condition.

Suggest me if iam wrong

jimmy23 · Posted: Tue Feb 26, 2008 10:28 pm Post subject: I M Sure

My answer is D and i am sure about it.

codesnooker · Posted: Wed Feb 27, 2008 3:20 am Post subject: Re: fill in the blank question