#Question id: 1284
#Unit 4. Cell Communication and Cell Signaling
The collagen triple-helix domain is NOT:
#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.
#Question id: 15850
#Unit 4. Cell Communication and Cell Signaling
#Question id: 10237
#Unit 10. Ecological Principles
Which of the following is the most logical conclusion about the distribution of the two species of barnacle, Chthamalus and Balanus?
#Question id: 4815
#Unit 8. Inheritance Biology
The cross over percentage between linked genes J and M is 20%, J and L is 35%, J and N is 70%, L and K is 15%, M and N 50%. The sequence of genes on the chromosome is