#Question id: 1242
#Unit 4. Cell Communication and Cell Signaling
Rhodopsin, a light-sensitive GPCR whose role in vision is dependent on its phosphorylation status, is influenced in part by the protein arrestin. Which of the following is TRUE with regard to rhodopsin and vision?
#Question id: 19094
#Unit 6. System Physiology – Plant
#Question id: 3820
#Unit 3. Fundamental Processes
Meselson and Stahlʹs experiments involved growing E. coli on a medium containing 15N (heavy nitrogen) which increased the density of the bacterial DNA. Cells were then grown on a medium containing only 14N. DNA samples were obtained for analysis after one, two and three rounds of replication (generations) and centrifuged on a density gradient. The double-helical DNA forms bands in the gradient depending on its density. How many bands did Meselson and Stahl see after two generation of cells were grown on the 14N medium?
#Question id: 1295
#Unit 4. Cell Communication and Cell Signaling
What signal is released by endothelial cells to recruit circulating leukocytes?
#Question id: 31108
#Unit 2. Cellular Organization
