When site directed mutagenesis of aspartate to asparagine in the active site of trypsin is performed, the catalytic activity decreases 10-fold. Suggest a structure for the triad of Asn-His-Ser in this modified enzyme and explain why this mutation results in reduced activity.

Sea stars, sea urchins, sand dollars, and brittle stars are all memeber of a group, what is the common name of the group they are all in

Describe how a non-resistant staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin

What is the main reason that attitudes are more often revealed in spoken rather than written language? a. in writing, we try to put the "best face" on what we write. b. we speak far more often than we write. c. in writing, we can more easily conceal our attitudes. d. in spoken language, we are often careless in our use of words.