What is the correct relationship between receptor tyrosine kinases and Ras proteins?
A) Phosphorylated Ras proteins activate the tyrosine kinase.
B) Phosphorylated Ras proteins pair with a tyrosine kinase to activate other proteins.
C) Tyrosine kinase dimers phosphorylate the Ras proteins directly.
D) Tyrosine kinase dimers use GAPs and GNRPs to regulate Ras proteins.
Answer: D
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Fill in the blank(s) with the appropriate word(s).
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