Author Archives: rlmiesfeld

A mutation causes a cell to divide uncontrollably. Analysis of the cell shows that both copies of the gene contain the mutation. From this information, it can be determined that the mutation is ______________.

The figure below shows an example of which functional group?

How does a defect in adenosine deaminase (ADA) lead to inhibition of DNA synthesis? The adenosine deaminase reaction is illustrated below.

The figure below shows two different transcription factors in ribbon style bound to double helical DNA shown in space filling style. Which one of the following statements describes the structure-function relationship between these two proteins?

Which enzyme catalyzes the following reaction?

Which stabilizing force in protein tertiary structures is a covalent bonding force?

If protein kinase A is activated in a liver cell in response to epinephrine binding to the beta-2-adrenergic receptor, which of the following will result?

What molecule signals the endothelial cell to produce NO?

Which anaplerotic reaction balances the input of oxaloacetate with acetyl-CoA in the citrate cycle by converting pyruvate into oxaloacetate?