Hedgehog signaling at the compartment boundary in the Drosophila wing disc leads to the expression of what signaling molecule in the adjacent anterior cells?

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#Question id: 4024

#Unit 3. Fundamental Processes

All of the following statements about the essential carboxy terminal domain (CTD) of RNA polymerase are true except:

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#Question id: 27211

#Unit 1. Molecules and their Interaction Relevant to Biology

 A biological redox reaction always involves

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#Question id: 6995

#Unit 5. Developmental Biology

The migratory neural crest cells ________.

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#Question id: 31334

#Unit 5. Developmental Biology

The regrowth of hair shafts from follicular stem cells in the hair bulge is an example of regeneration. Which is similar mechanism like:

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#Question id: 11257

#Unit 10. Ecological Principles

Close examination of the yucca-yucca moth mutualism has shown that what appear to be coevolved traits may have been __________ that were critical to the establishment of the mutualism in the first place.