Researchers estimate that in order to use stem cells in future to treat organ damage, genetic engineers need to experiment significantly more than they do now
about the growth mechanisms and transformation structures of these cells.
Let’s understand the intended meaning
first. Researchers have made some estimates. Now, these are only estimates or assumptions and not something certain. Per this estimate, genetic engineers would need to experiment significantly more than they do currently about the growth mechanisms and transformation structure of stem cells in order to use these cells in future to treat organ damage. Error Analysis:
Notice that this sentence talks about the estimate made by researchers. Estimates are assumptions. Hence, there is uncertainty involved. So whenever there is uncertainty about any future event, we use conditional “would”. This sentence lacks that conditional “would”. It rather uses simple present tense “need”, making this action a certainty. The sentence now suggests that the genetic engineers surely need to experiment more for the specific purpose. This is not the intended meaning.POE:
A. need to experiment significantly more than they do now: Incorrect
for the reason stated above.
B. would need to experiment significantly more than they do now: Correct.
Conditional “would” presents uncertainty in this action.
C. will need to experiment significantly more: Incorrect.
1. Use of “will” is incorrect as it denotes a certain action.
2. This choice does not have the intended comparison.
D. need to experiment significantly more now than they do: Incorrect.
1. Repeats the verb tense error of choice A.
2. Change in placement of “now” suggests that the genetic engineers need to do experiment significantly now while the original sentence says that in future they need to do so.
E. would need to experiment significantly more as compared to now: Incorrect.
This choice uses incorrect idiom. We need “than” after more for correct comparison.
Hope this helps.
Free trial:Click here to start free trial (100+ free practice questions)
Free Session: September 14: Learn how to define your GMAT strategy, create your study plan and master the core skills to excel on the GMAT. Click here to attend.