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You want to develop an ion-chelating drug that prevents the mechanisms by which the PrPsc  induces death of the neuron. Inhibition of which of the following ions would be MOST effective:

With the exception of retroviruses, most RNA viruses encode for which of the following enzymes in order to replicate their genome in the cytosol:

Which of the following is a use for gene-modified animals:

A miRNA-loaded RISC complex binds to the target mRNA and prevents protein expression by causing translational repression (rather than mRNA cleavage):

Attachment of Cryptosporidium sporozoites to epithelial cells is mediated in part by proteins secreted from which of the following organelles:

Structural proteins are the first type of viral proteins to be synthesized early in infection:

Transcription requires which of the following:

Which of the following ions are pumped out of the matrix to generate the mitochondrial electrochemical potential:

Which of the following therapeutic stem cell types has the least tumorigenic potential:

Inhibition of Histone Deacetylases (HDACs) will cause which of the following?