Which of the following is an advantage of using distance methods to construct tr

Question

Which of the following is an advantage of using distance methods to construct trees?

Select one:

a. Distance methods lack any sort of underlying evolutionary model

b. Distance methods are conceptually straightforward

c. Distance methods are computationally among the slowest techniques

d. The assumption is made that similarity is a reflection of homology

Maximum likelihood methods assume that the best phylogeny is the one that explains the observed character data with the fewest evolutionary changes.

a. true

b. false

The older a clade is:

Select one:

a. more likely its members will show sequence divergence

b. more likely its members will share very similar sequences

c. less likely it has a common ancestor

d. less likely its members will show sequence divergence

The basic conceptual approach to phylogenetic tree building assumes that

Select one:

a. species with many character states in common are more closely related than those with few character states in common

b. vestigial traits are not relevant

c. shared characters are homoplasies

d. common ancestors are identified for each internal node

Which of the following phylogenetic methods involves counting up the number of commonalities among taxa and using this information to cluster closely related species together?

Select one:

a. Bayesian inference methods

b. distance methods

c. parsimony methods

d. maximum likelihood methods

Explanation / Answer

a)D

They are also fast and simple to perfom.This method can manage more taxa,sequences and characters of a particular species.

b)True

c)D

As the clade of the particular species get old the new clade over power it resulting in extinxtion of the clade due to limited divergence and sequencing of the members of the clade.Predators and pathigens can be the reason of the loweing in their population.

d)D

Phylogentic tree deals with the formulation of braches with common decendants of a taxa and features of the species.Relationship between the ancester and the descendants can be showed using tree and branching patterns.

e)B

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