Explain in general why the shape of a biomolecule is im-portant to its function.

Describe how tRNA is charged with an amino acid.

Briefly explain the structure and some functions of DNA, RNA, and a close relative, adenosine triphosphate (ATP) in nucleic acid.

Let’s suppose we have downloaded the structure of Hemoglobin from PDB. Now we want to retrieve the location of helices and loops in it. How can we do it? How can we depict a protein’s coordinate info in a modeling program? (Subject: Bioinformatics)

Briefly explain how an epitope can be used to study how many subunits are in a protein complex.

Determine the synthetic family to which each of the following amino acids belongs:a. alanineb. phenylalaninec. methionined. tryptophane. histidinef. serine

What general structural feature is shared by proteins that specifically form homodimers (but not homotrimers, homoteramers etc)? Only one answer is correct.     the surface consists of hydrophilic alpha-helix.   the surface is highly modified by post-translational modification.   the surface is permanently bound by chaperones.   the surface is unstructured.   the surface, or part of it, is self-complementary.

Given the messenger RNA sequence, determine the amino acid sequence of a peptide.