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July 1, 2015

Homework Help: 7th grade science Ms. Sue pleae only 1 question

Posted by Delilah on Friday, November 2, 2012 at 10:56pm.

1.
Gene therapy research uses _______ to alter defective hereditary material. (1 point)

bacteria
cells
interferons
viruses

Is the answer viruses? Or maybe its cells?

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