In: Biology
1. Distinguish between “genome-wide” selective sweeps, versus “gene-specific” selective sweeps. Which of these would you expect to find in bacterial populations? Why? How could you distinguish between them? Discuss several reasons (as many as possible) why bacteria have evolved a somewhat higher error rate (in DNA replication) than multicellular animals.
Why are ribosomal proteins (and/or ribosomal RNAs) used for constructing a “universal tree of life”? Why are such trees usually presented in an “unrooted” form?