Related Experiment Video

Updated: Aug 6, 2026

Dissection of Drosophila melanogaster Flight Muscles for Omics Approaches
08:33

Dissection of Drosophila melanogaster Flight Muscles for Omics Approaches

Published on: October 17, 2019

Gene model for the ortholog of Thor in Drosophila ananassae

Madeline L Gruys1, Jhilam Dasgupta1, Joshua Williams2

  • 1The University of Alabama, Tuscaloosa, AL USA.

Micropublication Biology
|July 22, 2026
PubMed

More Related Videos

Embryo Microinjection for Transgenesis in Drosophila05:32

Embryo Microinjection for Transgenesis in Drosophila

Published on: June 7, 2024

Laboratory Maintenance of the Lower Dipteran Fly Bradysia (Sciara) coprophila: A New/Old Emerging Model Organism04:26

Laboratory Maintenance of the Lower Dipteran Fly Bradysia (Sciara) coprophila: A New/Old Emerging Model Organism

Published on: April 19, 2024

Related Concept Videos

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...
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...
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.