How Does the Insulin Receptor Differ from the Erythropoietin Receptor

question 45

Multiple Choice

How does the insulin receptor differ from the erythropoietin receptor?

• A) Upon binding its signal molecule, the insulin receptor has two-fold symmetry, while the erythropoietin receptor does not.
• B) Both the insulin and erythropoietin receptors trigger MAPK cascades.
• C) The insulin receptor contains a tyrosine kinase, while the erythropoetin receptor does not.
• D) The insulin receptor is phosphorylated in response to signal molecule binding, while the erythropoietin receptor does not.

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