Which of the following provides the strongest support that a proposed phylogenetic tree is an accurate reflection of the real genealogical relationships among a set of species?
| a. |
Phylogenetic methods applied to multiple, independent sources of evidence (e.g. comparisons of independently evolving genes, or comparisons between DNA-based analysis vs. morphological analysis) provide support for the same evolutionary tree |
|
| b. |
The phylogeny was based on the Maximum Parsimony method applied to DNA sequence data for lineages with high rates of evolution and low rates of speciation |
|
| c. |
Multiple methods for constructing phylogenies (Maximum Parsimony, Maximum-Likelihood, Bayesian inference) provide support for the same phylogenetic tree when the analysis is applied to a single gene shared by the set of species in question. |
|
| d. |
The phylogeny has the highest likelihood-ratio (L1/L2) of any alternative hypothesis of branching events |
ans.C-The current best phylogenetic tree reconstruction method (Such as maximum likelihood or Beyesian MCMC analyses),Without being as Computationally intensive.
Which of the following provides the strongest support that a proposed phylogenetic tree is an accurate reflection of the...
Explain what parsimony is and why it is preferred in comstructing phylogenetic trees. Under optimal conditions, all the methods discussed [parsimony, maximum likelihood, neighbor joining akr bayesian inference reveal the true branching pattern of the phylogeny in question with accuracies appraoching 100%. However, real phylogenies are rarely inferred under ideal circumstances. Explain, using examples, why this is so.
During phylogenetic analysis, what is the purpose of using the bootstrapping method? To determine the best nucleotide substitution model. To assess the accuracy of the multiple sequence alignment. To calculate the probability of selecting an appropriate outgroup. To assess the accuracy of a particular tree topology. Which of the following phylogenetic methods calculates posterior probabilities to identify the tree that has the maximum probability? Bayesian inference. Maximum likelihood. Maximum parsimony. Genetic distance inference.