Exam 6: Exploring Evolution and Bioinformatics

________________ amplification of well-preserved samples allows the determination of nucleotide sequences from extinct organisms.

The process by which very different evolutionary pathways lead totwo proteins with similar functions is referred to as _________________ evolution.

Which of the following molecules is the most stable?

In the Blosum-62 substitution matrix,a large ________________ score corresponds to substitution that occurs only rarely.

If a protein contains a repetitive region,what might be assumed,and what should be done next to test the hypothesis?

Evolutionary trees provide relative scales of divergence.How can these be reconciled with real times?

Protein sequence comparisons can provide estimates of