Growth of new blood vessels is stimulated by vascular endothelial growth factor (VEGF). This ligand binds to the VEGF receptor, which leads to the dimerization and autophosphorylation of this receptor on cytoplasmic tyrosines. What type of receptor is the VEGF receptor?
A. Enzymatic receptor
B. G protein-coupled receptor
C. Steroid hormone receptor
D. Channel-linked receptor
Answer: A
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