Related Experiment Video

Updated: Apr 11, 2026

Slide Preparation Method to Preserve Three-dimensional Chromatin Architecture of Testicular Germ Cells
07:34

Slide Preparation Method to Preserve Three-dimensional Chromatin Architecture of Testicular Germ Cells

Published on: January 10, 2014

7.9K

[Sex inversion and epigenetic regulation in Vertebrates]

A V Trukhina, N A Lukina, A A Nekrasova

    Genetika
    |June 2, 2015
    PubMed
    Summary

    This review explores vertebrate sex determination and differentiation, focusing on genetic and epigenetic controls. It examines external and internal factors influencing these processes and discusses sex inversion in animals.

    More Related Videos

    Microinjection for Transgenesis and Genome Editing in Threespine Sticklebacks08:51

    Microinjection for Transgenesis and Genome Editing in Threespine Sticklebacks

    Published on: May 13, 2016

    14.8K
    Dissection of Larval Zebrafish Gonadal Tissue10:43

    Dissection of Larval Zebrafish Gonadal Tissue

    Published on: April 26, 2017

    11.2K

    Related Concept Videos

    Dosage Compensation02:50

    Dosage Compensation

    In animals, gender is determined by the number and type of sex chromosome. For example, human females have two X chromosomes, and males have one X and one Y chromosome, whereas C.elegans with one X chromosome is a male, and the one with two X chromosomes is a hermaphrodite.
    In addition to sexual development, the X chromosome has genes involved in autosomal functions such as brain development and the immune system. Therefore, males and females with  distinct numbers of X chromosomes will...
    7.9K
    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.
    7.3K
    The Ratio of X Chromosome to Autosomes02:45

    The Ratio of X Chromosome to Autosomes

    In most organisms, sex is determined by the ratio of X and Y chromosomes. However, in some organisms, such as Drosophila and C.elegans, sex is determined by the ratio of the number of X chromosomes to the number of sets of autosomes. The Y chromosome in Drosophila is active but does not determine sex. It contains genes responsible for the production of sperms in adult flies.  
    Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female...
    10.1K
    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...
    4.3K
    Epigenetic Regulation01:46

    Epigenetic Regulation

    Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
    34.4K
    Epigenetic Regulation01:46

    Epigenetic Regulation

    26.3K