Related Experiment Video

Updated: May 14, 2026

Determination of DNA Methylation of Imprinted Genes in Arabidopsis Endosperm
09:23

Determination of DNA Methylation of Imprinted Genes in Arabidopsis Endosperm

Published on: January 28, 2011

[Corn plant DNA methylation pattern changes upon fractional UV-C irradiation]

A P Kravets, D A Sokolova, G S Vengzhen

    Tsitologiia I Genetika
    |February 23, 2013
    PubMed

    More Related Videos

    Immunostaining for DNA Modifications: Computational Analysis of Confocal Images09:42

    Immunostaining for DNA Modifications: Computational Analysis of Confocal Images

    Published on: September 7, 2017

    The Lambda Select cII Mutation Detection System07:08

    The Lambda Select cII Mutation Detection System

    Published on: April 26, 2018

    Related Concept Videos

    Mutations01:35

    Mutations

    Mutations are changes in the sequence of DNA. These changes can occur spontaneously or they can be induced by exposure to environmental factors. Mutations can be characterized in a number of different ways: whether and how they alter the amino acid sequence of the protein, whether they occur over a small or large area of DNA, and whether they occur in somatic cells or germline cells.
    Chromosomal Alterations Are Large-Scale Mutations
    While point mutations are changes in a single nucleotide in...
    Nucleotide Excision Repair01:08

    Nucleotide Excision Repair

    Overview
    Nucleotide Excision Repair01:38

    Nucleotide Excision Repair

    DNA Distortion and Damage
    Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
    Epigenetic Regulation01:37

    Epigenetic Regulation

    Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
    X-chromosome...
    Position-effect Variegation02:32

    Position-effect Variegation

    In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.