When Lucifer yellow, a small dye, is injected into a neuron of the retina, neighboring neurons become rapidly labeled. If the retina is incubated in dopamine prior to Lucifer yellow injection, only the injected neuron becomes labeled. These findings suggest which of the following?

I. Neurons of the retina communicate via gap junctions.

II. Dopamine is transferred between cells via gap junctions.

III. Dopamine decreases the permeability of gap junctions.

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#Question id: 19014

#Unit 13. Methods in Biology

Chromatography with solid stationary phase is called_________

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#Question id: 10477

#Unit 1. Molecules and their Interaction Relevant to Biology

The tendency of nonpolar molecules to self‐associate in water rather than to dissolve individually is called

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#Question id: 28752

#Unit 2. Cellular Organization

Plasmalogens is analogous to_

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#Question id: 10451

#Unit 6. System Physiology – Plant

Which induction is responsible for “uncages” the kinase domain of phototropin and leads to autophosphorylation

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#Question id: 30084

#Unit 2. Cellular Organization

Drosophila is considered a model system because it is quite easy to create transgenic lines harboring a variety of different genes. As a Drosophila geneticist, which one of the following is a DNA transposon that you would exploit to create a transgenic line?