• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
topics - Leeds Maths
topics - Leeds Maths

ppt - Gogarten Lab
ppt - Gogarten Lab

... usually not all sites in a sequence are under selection all the time. PAML (and other programs) allow to either determine omega for each site over the whole tree, ...
TreeFitter commands
TreeFitter commands

... Tree fitting has important applications in historical biogeography, coevolution and gene tree-species tree fitting [see recent reviews by \Page, 1998 #1419; Ronquist, 1998 #760]. A general characteristic of these problems is that two different kinds of trees are fitted to each other because we are i ...
Comparative Analysis
Comparative Analysis

final exam in kje-2004
final exam in kje-2004

... Sequence similarity: a quantitative measure between two sequences in an alignment. The similarity can be presented as for example percentage similarity. Sequence identity: a quantitative measure between two sequences in an alignment. The similarity can be presented as for example percentage similari ...
Viburnum
Viburnum

You can position your opening statement here, either in
You can position your opening statement here, either in

... One of the most widely used and practical forms of machine learning and data mining ...
Measuring Trees
Measuring Trees

... If distance from tree (D), or "run" is 100 feet, The reading from horizontal to Stump height (A) is 5 feet and tree height above the horizontal plane (B) or "rise" is 80 feet Total Tree height equals A + B = 85 feet ...
Chapter 26 Phylogeny and the Tree of Life (working
Chapter 26 Phylogeny and the Tree of Life (working

... mathematical tools when analyzing comparable DNA segments from different organisms ...
NOTE Phylogenetic analysis of Gram
NOTE Phylogenetic analysis of Gram

... distances on the tree, is shown. The tree showed that the Gram-positive bacteria form three groupings, i.e. ...
Travelling Salesman Problem
Travelling Salesman Problem

Lecture 23 (11/16/2007): Population Genetics
Lecture 23 (11/16/2007): Population Genetics

... numbers (most significant bit in row 1) and sorting in decreasing ...
Lecture 21 : Introduction to Neutral Theory
Lecture 21 : Introduction to Neutral Theory

... Failure to coalesce within species lineages drives divergence of relationships between gene and species trees ...
DUB(1)
DUB(1)

... 1. Does endemism exist among ciliate species? A long-held view in microbial ecology is summed up by the phrase “Everything is everywhere”. In this view, there is no true endemism among microbes, including ciliates, because small organisms have such large absolute population sizes and high dispersal ...
Spanning tree manipulation and the travelling salesman
Spanning tree manipulation and the travelling salesman

Document
Document

0.8 x 0.8 x 0.2 x 0.2 = 0.0256.
0.8 x 0.8 x 0.2 x 0.2 = 0.0256.

... 5.2 Non-parametric methods We first consider the situation where our data are continuous but may not be Normally distributed, and in fact we do not know what distribution might be appropriate. In these cases, the methods that we have studied so far in this course, t-tests, ANOVA etc. are not approp ...
Chapter 12 Microbial Evolution and Systematics
Chapter 12 Microbial Evolution and Systematics

... as judged by DNA hybridization experiments. A biovars: variant procaryotic strains characterized by biochemical or physiological differences. Morphovars: differ morphologically Serovars: have distinctive antigenic properties Type strain: it is usually one of the first strains studied and often is mo ...
two proofs of cayley`s theorem
two proofs of cayley`s theorem

... has a simple path from the root to every vertex in the graph. The quantity we will compute in two different ways is the number τ of different sequences of directed edges that can be added to an empty graph on n vertices to yield a rooted tree. First way: we start with a spanning tree on the empty gr ...
Course Lecture 6
Course Lecture 6

Mixture Models in Statistics: Given a sample Xi for 1 ≤ i ≤ n , can it
Mixture Models in Statistics: Given a sample Xi for 1 ≤ i ≤ n , can it

Anomaly Detection vi..
Anomaly Detection vi..

... we propose an online over-sampling principal component analysis (osPCA) algorithm to address this problem, and we aim at detecting the presence of outliers from a large amount of data via an online updating technique. Unlike prior PCA based approaches, we do not store the entire data matrix or covar ...
INTRODUCTION: - the BIOTECH Project
INTRODUCTION: - the BIOTECH Project

... As a graduate student at the University of Illinois, Bernadette Pace used the annealing of rRNA with genomic DNA to measure the similarity of rRNAs in various species. These experiments demonstrated that rRNA-based methods are applicable to directly comparing a broader range of organisms (i.e., spa ...
Last Universal Common Ancestor
Last Universal Common Ancestor

... different species that derive from a common ancestor. ...
Document
Document

... Web-accessible repository for DNA microarray data. Password protected Database is being developed to allow authorized users to search for bacteria of interest by city or by time (date). Weather data corresponding to the collection dates will be linked.  Given that there are over 9,000 OTUs detecta ...
< 1 ... 37 38 39 40 41 42 43 44 45 ... 60 >

Computational phylogenetics

Computational phylogenetics is the application of computational algorithms, methods, and programs to phylogenetic analyses. The goal is to assemble a phylogenetic tree representing a hypothesis about the evolutionary ancestry of a set of genes, species, or other taxa. For example, these techniques have been used to explore the family tree of hominid species and the relationships between specific genes shared by many types of organisms. Traditional phylogenetics relies on morphological data obtained by measuring and quantifying the phenotypic properties of representative organisms, while the more recent field of molecular phylogenetics uses nucleotide sequences encoding genes or amino acid sequences encoding proteins as the basis for classification. Many forms of molecular phylogenetics are closely related to and make extensive use of sequence alignment in constructing and refining phylogenetic trees, which are used to classify the evolutionary relationships between homologous genes represented in the genomes of divergent species. The phylogenetic trees constructed by computational methods are unlikely to perfectly reproduce the evolutionary tree that represents the historical relationships between the species being analyzed. The historical species tree may also differ from the historical tree of an individual homologous gene shared by those species.Producing a phylogenetic tree requires a measure of homology among the characteristics shared by the taxa being compared. In morphological studies, this requires explicit decisions about which physical characteristics to measure and how to use them to encode distinct states corresponding to the input taxa. In molecular studies, a primary problem is in producing a multiple sequence alignment (MSA) between the genes or amino acid sequences of interest. Progressive sequence alignment methods produce a phylogenetic tree by necessity because they incorporate new sequences into the calculated alignment in order of genetic distance.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report