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Gravitaxis (or geotaxis [1]) is a form of taxis characterized by the directional movement of an organism in response to gravity. [2] There are a few different causes for gravitaxis. Many microorganisms have receptors like statocysts that allow them to sense the direction of gravity and to adjust their orientation accordingly. However ...
Evidence for the innate response of positive phototaxis in Drosophila melanogaster was carried out by altering the wings of several individual specimens, both physically (via removal) and genetically (via mutation). In both cases there was a noticeable lack of positive phototaxis, demonstrating that flying toward light sources is an innate ...
The Drosophila Interactions Database (DroID) is an online database of Drosophila gene and protein interactions. [1] It was developed by Russell L. Finley's laboratory at Wayne State University School of Medicine in 2008 and has been funded by the National Human Genome Research Institute, National Institutes of Health's National Center for Research Resources, Michigan Proteome Consortium, and ...
Drosophila melanogaster is commonly used for animal experimentation. Most animal testing involves invertebrates, especially Drosophila melanogaster, a fruit fly, and Caenorhabditis elegans, a nematode. These animals offer scientists many advantages over vertebrates, including their short life cycle, simple anatomy and the ease with which large ...
Drosophila is a genus of flies of the family Drosophilidae. It comprises over 1600 described species, [ 1 ] [ 2 ] but is estimated to have several thousands. [ 3 ] Alfred Sturtevant divided Drosophila into a number of subgenera , including Drosophila , Sophophora , and Dorsilopha .
The best known species of the Drosophilidae is Drosophila melanogaster, within the genus Drosophila, also called the "fruit fly." Drosophila melanogaster is used extensively for studies concerning genetics, development, physiology, ecology and behaviour. Many fundamental biological mechanisms were discovered first in D. melanogaster. [2]
The classical example is the Drosophila w m4 (speak white-mottled-4) translocation.In this mutation, an inversion on the X chromosome placed the white gene next to pericentric heterochromatin, or a sequence of repeats that becomes heterochromatic. [3]
Drosophila melanogaster, the common fruit fly, has been used to study the effects of spaceflight on living organisms.. On a July 9, 1946, suborbital V-2 rocket flight, fruit flies became the first living and sentient [citation needed] [] organisms to go to space, and on February 20, 1947, fruit flies safely returned from a suborbital space flight, which paved the way for human exploration.