GRE Text Completion Question 742
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Source: Red
Manipulating laboratory tissue cultures with hormones is one thing; using hormones to treat human beings, however, is contingent on whether hormones that (i) _____ in the laboratory can affect (ii) _____ organisms, and in predictable ways.
| Blank(i) | Blank(ii) |
|---|---|
| A fail | D esoteric |
| B work | E cellular |
| C reproduce | F whole |