Draw structure of Cytosine, Thymine and Uracil and describe the difference in the structure?

How does a polypeptide fold to become a functioning protein?

What is G-banding?

Within a naturally-occurring polypeptide, under neutral pH conditions (pH = 7.0), which of the following amino acids always has a negatively charged carboxyl group? the first amino acid in the primary structure histidine lysine arginine the last amino acid in the primary structure

What role does symmetry play in the formation of protein assemblies built from identical subunits? What is a protomer? Use this term to distinguish between symmetric and pseudosymmetric assemblies.

What type of protein structure does the active form of Catechol-oxidase most likely possess?

Describe the helix-turn-helix (HTF) motif?

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.