関連する実験動画

Updated: Aug 8, 2026

Dissection and Staining of Drosophila Larval Ovaries
07:40

Dissection and Staining of Drosophila Larval Ovaries

Published on: May 13, 2011

ドロソフィラのセグメンタル決定を正しく開始するために必要な遺伝子産物

G Struhl

    Nature
    |September 3, 1981
    PubMed
    まとめ

    エクストラ・セックス・カンブス (esc) 遺伝子の変異は,セグメンタル決定を開始するための早期発達における重要な役割を明らかにする. esc+遺伝子製品は,他のホメオティック遺伝子を調節し,セグメント特異な発達経路を確立します.

    さらに関連する動画

    Live-cell Imaging of Sensory Organ Precursor Cells in Intact Drosophila Pupae04:27

    Live-cell Imaging of Sensory Organ Precursor Cells in Intact Drosophila Pupae

    Published on: May 27, 2011

    Dissection and Immunostaining of Imaginal Discs from Drosophila melanogaster10:10

    Dissection and Immunostaining of Imaginal Discs from Drosophila melanogaster

    Published on: September 20, 2014

    関連する概念動画

    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.
    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 Drosophila...
    Exon Recombination02:32

    Exon Recombination

    The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes. 
    Exon shuffling follows “splice frame rules.” Each exon has three reading...