The Pax6 Gene Codes for a Transcription Factor That Initiates

question 15

Multiple Choice

The Pax6 gene codes for a transcription factor that initiates differentiation of cells that ultimately form the eye. Suppose that a researcher added an activator for the Pax6 gene to embryonic cells that are in the process of forming legs in Drosophila. What do you think the researcher will observe?

• A) Legs and eyes will develop normally.
• B) Legs will develop where the eyes normally develop.
• C) Eyes will develop where the legs normally develop.

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