Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun biochemistry A
homeobox protein (and associatedgene ) whose overexpression in the head segment of insects can lead to the formation oflegs instead ofantennae
Etymologies
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Examples
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On page 101 of his book, Prothero shows pictures of two Hox gene mutations: "antennapedia," which causes a fruit fly to sprout legs instead of antennae from its head, and "ultrabithorax," which causes a fruit fly to develop a second pair of wings from it midsection.
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An example is antennapedia in fruit flies (Drosophila), wherein the mutated Hox gene causes legs to grow out of the head where antennae should be.
Looking pretty homeotic there frankwu 2008
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(antennapedia) and a fruit fly with an extra pair of wings (ultrabithorax), accompanied by a caption stating that these show "that big developmental changes can result from small genetic mutations."
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