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  • Gel electrophoresis (article) | Khan Academy
    Gel electrophoresis Gel electrophoresis is a technique used to separate DNA fragments (or other macromolecules, such as RNA and proteins) based on their size and charge Electrophoresis involves running a current through a gel containing the molecules of interest
  • Gel electrophoresis (video) | Biotechnology | Khan Academy
    Gel electrophoresis is a technique used to separate DNA, RNA, or protein fragments by size It involves a gel, electric charge, and migration of molecules DNA samples are placed in wells within an agarose gel, and an electric field is applied Smaller molecules move faster through the gel, allowing for separation and estimation of fragment lengths using a DNA ladder as a reference Ethidium
  • Gel electrophoresis (video) | Khan Academy
    Learn how gel electrophoresis separates DNA and protein fragments based on size and why one would use agarose gel electrophoresis versus SDS-PAGE By Angela Guerrero
  • Gel electrophoresis (practice) | Khan Academy
    Aslan uses gel electrophoresis to look for DNA fragments of similar sizes The results are seen in the image below Which of the fragments should Aslan identify as similar?
  • Polymerase chain reaction (PCR) (article) | Khan Academy
    Using gel electrophoresis to visualize the results of PCR The results of a PCR reaction are usually visualized (made visible) using gel electrophoresis Gel electrophoresis is a technique in which fragments of DNA are pulled through a gel matrix by an electric current, and it separates DNA fragments according to size
  • Protein Electrophoresis and SDS-PAGE (article) | Khan Academy
    Protein electrophoresis is used to separate proteins based on their size and charge Electrophoresis uses an electric field to move charged molecules through a gel matrix Proteins, being charged molecules, will migrate towards the electrode of opposite charge The rate at which they migrate depends on their size, shape, and net charge
  • Electroforesis en gel (artículo) | Khan Academy
    Electroforesis en gel La electroforesis en gel es una técnica utilizada para separar fragmentos de ADN (u otras macromoléculas, como ARN y proteínas) por su tamaño y carga La electroforesis consiste en aplicar una corriente a través de un gel que contiene las moléculas de interés
  • Molecular evidence for evolutionary relationships examples
    This investigation focuses on determining the closest plant species to an unknown species by analyzing enzyme presence, amino acid sequence differences, and gel electrophoresis banding patterns Plant species with the most similarities in these factors are considered closely related The method also applies to finch species, using molecular evidence to establish evolutionary relationships
  • Intro to biotechnology (article) | Khan Academy
    Gel electrophoresis Gel electrophoresis is a technique used to visualize (directly see) DNA fragments For instance, researchers can analyze the results of a PCR reaction by examining the DNA fragments it produces on a gel
  • Restriction enzymes DNA ligase (article) | Khan Academy
    Learn about restriction enzymes and DNA ligase in DNA cloning with Khan Academy's comprehensive tutorial





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