GMAT Verbal Reasoning Practice Test 6

Question : 100 of 100

Marks: +1, -0

Any naturally occurring chemical can be reproduced synthetically once its structure is known.
Synthetically produced chemical compounds cannot be patented unless their chemical structures are made public.
If proven no less effective, naturally occurring chemicals are to be preferred to synthetic compounds for use in drugs.
Once a naturally occurring compound has been approved for use as a drug, it can no longer be newly patented.
A naturally occurring chemical cannot be patented unless its effectiveness as a drug has been rigorously established.

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