If a portion of the pancreas is surgically removed from a rat and the rat subsequently loses its appetite, one explanation is that the removed portion contains cells that secrete a chemical signal that somehow stimulates appetite. Given this scenario, what type of chemical signaling is occurring?

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#Question id: 3746

#Unit 3. Fundamental Processes

During recombination in E. coli, ________ recognize(s) regions of sequence similarity and promote(s) strand invasion, while ________ bind(s) to a Holliday junction promoting strand migration.

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#Question id: 6961

#Unit 5. Developmental Biology

Do HOX genes play a role in the development of C. elegans?

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#Question id: 24330

#Unit 4. Cell Communication and Cell Signaling

Ions, low-MW precursors of cellular macromolecules, products of intermediary metabolism, & small intracellular signaling molecules can pass from cell to cell through_______?

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#Question id: 571

#Unit 1. Molecules and their Interaction Relevant to Biology

The steady state assumption, as applied to enzyme kinetics, implies:

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#Question id: 23055

#Unit 12. Applied Biology

In cell lines normal tissues and are themselves non-tumorigenic, such as MDCK dog kidney, 3T3 fibroblasts, these are an example of___