#Question id: 28822
#Unit 2. Cellular Organization
The structure of the sarcomere is maintained by a number of accessory proteins except__
#Question id: 27401
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 33230
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 14781
#Unit 13. Methods in Biology
#Question id: 1388
#Unit 4. Cell Communication and Cell Signaling
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.