Which was your favorite movie this holiday season?

The Curious Case of Benjamin Button
The Day the Earth Stood Still
Four Christmases
Marley & Me
The Tale of Despereaux

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Roles of Nucleotides

Purine and pyrimidine nucleotides fill a variety of metabolic roles. They are the “energy currency” of the cell. In some cases, they are signaling molecules, acting like hormones directly or as transducers of the information. They provide the monomers for genetic information in DNA and RNA.

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