Phylogeny

Question 1

What does a phylogenetic tree show?

Answer 1

Inferred evolutionary relationships among various biological species based upon similarities and differences in their physical or genetic characteristics

Question 2

What does a cladogram show?

Answer 2

Relative order of common ancestry

Question 3

What are the advantages of a cladogram?

Answer 3

Does not reduced sequence information to a single number

Question 4

What are the disadvantages of a cladogram?

Answer 4

Cannot infer anything about evolutionary time

No information on branch lengths

Question 5

How do you check the reliability of phylogeny?

Answer 5

Use bootstap, different algorithms, build a consensus among various methods, compare other DNA sequences with the same species