#Question id: 7173
#Unit 5. Developmental Biology
Normally, the FgfR3 protein (a receptor tyrosine kinase) is activated by a fibroblast growth factor and signals the chondrocytes to stop dividing and begin differentiating into cartilage. This signal is mediated by the Stat protein, which is phosphorylated by activated FgfR3 and then translocated into the nucleus. Inside the nucleus, Stat activates the genes encoding a cell cycle inhibitor, the p21 protein. The mutation in FgfR3 causes the lethal condition thanatophoric dysplasia. This condition may be achieved by:
A. Mutations in the extracellular domain of the FgfR3 protein
B. Mutations in the tyrosine kinase intracellular domain of the FgfR3 protein
C. Mutations in the transmembrane domain of the FgfR3 protein
Which of the following is correct?
#Question id: 16392
#Unit 7. System Physiology – Animal
#Question id: 11422
#Unit 10. Ecological Principles
The values of temperature and precipitation used to define climate zones correspond to the conditions of moisture and cold stress that are particularly important determinants of plant form. Which of following is correct combination of Biome?
#Question id: 4705
#Unit 11. Evolution and Behavior
Darwin and Wallace's theory of evolution by natural selection was revolutionary because it ________.
#Question id: 12008
#Unit 10. Ecological Principles