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Related Concept Videos

Gene Duplication and Divergence02:37

Gene Duplication and Divergence

6.1K
The seminal work of Ohno in 1970 popularized the idea of gene duplication and divergence. DNA sequence comparison studies reveal that a large portion of the genes in bacteria, archaebacteria, and eukaryotes was  generated by gene duplication and divergence, indicating its critical role in evolution.
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...
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Residual Plots01:07

Residual Plots

4.6K
A residual plot is a statistical representation of data used to analyze correlation and regression results. It helps verify the requirements for drawing specific conclusions about correlation and regression. To obtain the residual plot, first, the residual for each data value is calculated, which is simply the vertical distance between the observed and the predicted value obtained from the regression equation.
When the residual values are plotted against the variable x, it is called a residual...
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Modified Boxplots00:57

Modified Boxplots

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A standard box and whisker plot informs us about the spread of the data in a given sample. One can identify the minimum value, maximum value, first quartile value, second quartile or median value, and third quartile.
However, the box plot does not tell the reader about outliers - values that lie far from the center of the data. We can modify the standard box and whisker plot to identify the outliers and visualize the actual spread of the data in a sample.
Initially, we calculate the adjusted...
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Interpreting Run Charts01:25

Interpreting Run Charts

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Run charts, essentially line graphs plotted over time, serve as fundamental yet effective tools for process analysis. They chronicle data sequentially, facilitating the identification of trends, shifts, or cyclical movements. This graphical representation is instrumental in determining whether a process is stable or exhibits signs of potential instability indicative of special cause variation. In the healthcare domain, run charts depict infection rates over time, enabling hospitals to monitor...
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Scatter Plot01:15

Scatter Plot

6.8K
The most common and easiest way to display the relationship between two variables, x and y, is a scatter plot. A scatter plot shows the direction of a relationship between the variables. A clear direction happens when there is either:
6.8K
Relative Frequency Histogram01:14

Relative Frequency Histogram

5.4K
The relative frequency depicts the proportion of data points that have each value. The frequency tells the number of data points that have each value. Like the histogram, a relative frequency histogram also has the same shape with a horizontal scale (the x-axis), but the vertical scale (the y-axis) is marked with relative frequencies (percentages of the whole) instead of actual frequencies. A relative frequency histogram is a graphical representation of a frequency distribution where the...
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Related Experiment Video

Updated: Jun 27, 2025

Optimization of Synthetic Proteins: Identification of Interpositional Dependencies Indicating Structurally and/or Functionally Linked Residues
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ModDotPlot-Rapid and interactive visualization of complex repeats.

Alexander P Sweeten1,2, Michael C Schatz1, Adam M Phillippy2

  • 1Department of Computer Science, Johns Hopkins University, Baltimore, MD 21211, USA.

Biorxiv : the Preprint Server for Biology
|May 7, 2024
PubMed
Summary
This summary is machine-generated.

ModDotPlot is a new, fast, and accurate tool for visualizing genomic repeats using an alignment-free dot plot approach. It enables researchers to quickly analyze large genomes, improving upon existing methods for genomic repeat analysis.

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Visualization of DNA Replication in the Vertebrate Model System DT40 using the DNA Fiber Technique
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A Robust Polymerase Chain Reaction-based Assay for Quantifying Cytosine-guanine-guanine Trinucleotide Repeats in Fragile X Mental Retardation-1 Gene
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Related Experiment Videos

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Area of Science:

  • Bioinformatics
  • Genomics
  • Computational Biology

Background:

  • Genomic repeat analysis commonly uses dot plots for sequence similarity visualization.
  • Advanced methods like StainedGlass visualize sequence identity as heatmaps for large repeat arrays.
  • Existing heatmap methods face computational challenges and accuracy limitations.

Conclusions:

  • ModDotPlot offers a significant improvement in speed and accuracy for genomic repeat visualization.
  • Facilitates the study of complex genomic regions like centromeres and heterochromatin.
  • The tool is publicly available for broader research application.