GRE Text Completion Question 515
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Source: XDF
Manipulating laboratory tissue cultures with hormones is one thing; using hormones to treat human beings, however, is contingent on whether hormones that_____in the laboratory can affect_____organisms, and in predictable ways.
Blank(i) | Blank(ii) |
---|---|
A fail | D similar |
B work | E cellular |
C reproduce | F whole |