Choose the true statements about the evolution of eyes in mice and fruit flies. 

_____ The gene Pax6 codes for a transcription factor involved in lens formation in the mouse.
_____ In the fruit fly, the gene eyeless codes for a transcription factor involved in lens formation.
_____ When the mouse gene Pax6 is inserted into a fruit fly, it causes a vertebrate-type lens to form on the fly's leg.
_____ The sequences of the genes eyeless and Pax6 are very different.


__X__ The gene Pax6 codes for a transcription factor involved in lens formation in the mouse.
__X__ In the fruit fly, the gene eyeless codes for a transcription factor involved in lens formation.
_____ When the mouse gene Pax6 is inserted into a fruit fly, it causes a vertebrate-type lens to form on the fly's leg.
_____ The sequences of the genes eyeless and Pax6 are very different.

Biology & Microbiology

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