What is maximum likelihood (ML) in phylogenetics? The probability of the model of sequence evolution given the tree, the sequences, and the branch lengths O The probability of the tree given the sequences, the model of sequence evolution, and the branch lengths O The probability of the branch lengths given the sequences, the tree, and the model of sequence evolution O The probability of the sequences given the tree, the model of sequence evolution, and the branch lengths

What is maximum likelihood (ML) in phylogenetics? The probability of the model of sequence evolution given the tree, the sequences, and the branch lengths O The probability of the tree given the sequences, the model of sequence evolution, and the branch lengths O The probability of the branch lengths given the sequences, the tree, and the model of sequence evolution O The probability of the sequences given the tree, the model of sequence evolution, and the branch lengths

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter24: Systematics And Phylogenetics: Revealing The Tree Of Life

Section: Chapter Questions

Problem 12TYK

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Similar questions

Shown above are three possible phylogenetic trees for species I, II and III reconstructed based on the 4-nucleotide DNA sequences given in the righthand table. In every tree, each hatchmark on a branch represents a single base-change event. The most parsimonious tree would be - A. Both X and Y. B. X. C. Y. D. Both Y and Z. E. Z.
Which of the following best explains why coalescent-based phylogenetic inference is important in the age of phylogenomics? A) Coalescent-based methods directly model gene tree histories independently to infer the species tree in a summary-based manner, which is important for phylogenomic analysis were hundreds to thousands of gene histories are analyzed. B) Coalescent-based methods have the most advanced evolutionary models of molecular evolution, which is important for phylogenomic analysis were hundreds to thousands of gene histories are analyzed. C) Coalescent-based methods are no more important than other types of phylogenetic inference, even for phylogenomic analyses. D) None of the above.
Were any of your physical traits autapomorphic or synapomorphic when plotted on the gene trees? Which ones and for which species? Phylogeneticists often refer to these physical traits as “evolutionarily significant,” what do you suppose they mean by this?
Do all the phylogenetictrees below represent thesame relationships (sametopology)? If not, circle thetree(s) that is/are differentand explain why in the spaceto the left.
(top or bottom) Species A, B, C, D, and, E are all extant species (living today; not to be confused with “extinct” species). Consider the common ancestor shared between humans and species A (ancestor A-H), the common ancestor between species B and humans (ancestor B-H), etc. Which of thetwo trees below best represents the phylogenetic relationship between species shown in the nucleotide divergence plot above (top tree or bottom tree)?
Were any of your physical traits autapomorphic or synapomorphic when plotted on the gene trees? Which ones and for which species? Phylogeneticists often refer to these physical traits as “evolutionarily significant,” what do you suppose they mean by this? Were any of your physical traits analogous? Which ones? Why do you suppose some traits can occur multiple times on a tree while others don’t? Given your results from two genes and physical traits, what relationships between species are you certain of? Which ones are you uncertain of? Why? If gene trees have more information in terms of base pairs for generating phylogenies, why do you suppose phylogeneticists even bother using and including physical traits in their analyses?
Molecular marker is used to determine relatedness of species which may directly or indirectly exerts an effect on diversity. A hypothetical ancestor has the following DNA sequences: G A A G C T A T T C A T T. There are two lineage with DNA sequences of G A A G G T A T T C T C G, and G A A C C T A T T C T G C. (1) Determine the percentage of A and T in the DNA sequence of the hypothetical ancestor. (2) Calculate the percentage of each nitrogenous base in the second lineage.
Would a protein encoded on the core genome or one encoded only on the pan-genome be best to use in constructing a phylogenetic tree? Explain your answer
What is the main point this research "Molecular origins of rapid and continuous morphological evolution "? And, describe the experiments they did, the results and ramification of those results? https://www.pnas.org/content/101/52/18058
Phylogenetic tree: Change in characteristics occurs in lineages over time. Rate of mutation is not constant over time and for all lineages in phylogenetic tree. So, leaves can have different distance from the root. As, we have no idea how these rabbits are related in evolution. Construct a phylogenetic tree from table below using NeighborJoining Method. where X is 57.
There are 27 sequences from 27 individuals belonging to an unidentified group of organisms. Eleven (11) sequences were mined from NCBI while the rest are unpublished sequences from Mindanao. Sequences labeled with "SSL" are from Agusan Marsh while sequences labeled with "CKL/CITLR" and "CWL" are from Camiguin Island and Dinagat Islands respectively. Finally, sequences labeled with "MSLA" are from Mt. Magdiwata. From the nucleotide results and generated phylogenetic tree below: a) What group of organisms is represented by the phylogenetic tree? b) Identify the source (species) of each sequence. c) How many species are present in the generated tree? d) What species is considered as the outgroup? e) What genetic marker is utilized to generate the sequences? f) Which specimen group is more closely related to "SSL"? CKL or MSLA? Justify your answer h) Based on the results, what possible species name can be assigned to the MSLA group?
Referring to the phylogenetic tree shown above, answer the following questions: 1. How many OTUs are included in the phylogenetic analysis? 2. How many clades are there? 3. What is an autapomorphic trait of the domestic cat? Explain why? 4. What is the shared derived trait (synapomorphy) in the Family Felidae? Explain why?