Some Hormones Act by Triggering the Release of Calcium from the ER.These

question 6

Multiple Choice

Some hormones act by triggering the release of calcium from the ER.These hormones can regulate gene expression, usually by:

• A)The binding of calcium to transcription factors, which in turn bind to promoters and enhancers of genes.
• B)The activation of calmodulin-regulated protein kinases that phosphorylate nuclear transcription factors.
• C)The direct binding of calcium to the DNA double helix.
• D)The methylation of DNA in the promoters and enhancers of genes by a calcium-dependent enzyme.
• E)The binding of calcium to mRNA, which stabilizes the RNA against the action of RNA-degrading enzymes.

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