Explain the difference between gene duplication and divergence and the role of each.

Molecular Biology: Having trouble with a few homework problems. This section is tricky for me so any Show more Molecular Biology: Having trouble with a few homework problems. This section is tricky for me so any explaination is very helpful. Thank you so much. 22. Define/differentiate the following from one another: Motif Domain Multi-domain Quaternary structure 23. Define the following domains: SH2 SH3 Bromo Chromo PTB SNARE EF-Hand 24. Why are eukaryotic proteins on average bigger than prokaryotic proteins? 25. What is the role of protein domains and why do most proteins contain more than one domain? 26. Why does pyruvate kinase bind to fructose 16-bisphosphate? 27. Explain the overall structure of phosphofructokinase 2 / fructose bisphosphatase 2 noting why the protein interface is important and the role of serine 32. 28. Explain why fatty acid synthase has multiple domains. What is the function of the acyl carrier protein in this complex? How is it attached to CoA? 29. Explain the difference between gene duplication and divergence and the role of each. Give one example of a protein that demonstrates this process. 30. Are most proteins unique or built up from existing domains? Why? Show less

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