10. Which of the following processes generally requires protein phosphorylation? (A) Activation of receptor tyrosine kinases (B) Activation of steroid hormone receptors (C) Activation of G protein-coupled receptors (D) Activation ligand-gated ion channels

16. Nucleotides can be radiolabeled before they are incorporated into newly forming DNA and, therefore, can be assayed to track their incorporation. In a set of experiments, a student-faculty research team used labeled T nucleotides to study the incorporation of labeled nucleotides into a culture of lymphocytes. They found that the lymphocytes incorporated the labeled nucleotide at a significantly higher level after a pathogen was introduced into the culture. What might they conclude from this observation? (A) The pathogen consumed radiolabeled nucleotides. (B) Infection causes lymphocytes to divide more rapidly. (C) Infection causes lymphocytes to increase in size. (D) Infection causes lymphocyte cultures to skip some parts of the cell cycle.

10. Which of the following processes generally requires protein phosphorylation?
(A) Activation of receptor tyrosine kinases
(B) Activation of steroid hormone receptors
(C) Activation of G protein-coupled receptors
(D) Activation ligand-gated ion channels

相關試題

相關試卷

10. Which of the following processes generally requires protein phosphorylation?(A) Activation of receptor tyrosine kinases(B) Activation of steroid hormone receptors(C) Activation of G protein-coupled receptors(D) Activation ligand-gated ion channels

相關試題

相關試卷

10. Which of the following processes generally requires protein phosphorylation?
(A) Activation of receptor tyrosine kinases
(B) Activation of steroid hormone receptors
(C) Activation of G protein-coupled receptors
(D) Activation ligand-gated ion channels