Bristles on a fruit fly

Bristles on a fruit fly

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Credit: CREDIT DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY.

Caption: Scanning electron micrograph of the fruit fly Drosophila melanogaster, (the wild type; Oregon R). It is chosen as the subject of genetic experiments, particularly on mutation, because it is easy to raise in large numbers & reproduces rapidly. Mutations are induced & the results, including short wings, forked bristles, feet in place of antennae & colour changes to the red- brown compound eyes, are studied. Straight bristles (setae), seen on the base of the thorax & on the resting wings, cover the fly. Bristle mutation (see Z340/231) results in short bristles, which may be curled & forked. Magnification X 220 (at 10x8 inch size).

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Keywords: animal, bristles/hairs, drosophila, drosophila melanogaster, fruit fly, genetic experiment, insect, insecta, invertebrate, invertebrates, mutation, nature, setae, subject o, wild type, wildlife, zoology

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