Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A sequence of DNA encoding a protein structure that binds to specific parts of DNA and affects transcription of DNA into RNA.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun genetics A short
sequence ofDNA that is shared by severalgenes involved in themorphogenesis of manyorganisms .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun one of various similar homeotic genes that are involved in bodily segmentation during embryonic development
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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Now, there are some observations that would have been inconsistent with the theory ¦ for example, if the dolphin homeobox genes were more fish-like than mammal-like.
Darwin Wins One 2006
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Now, there are some observations that would have been inconsistent with the theory … for example, if the dolphin homeobox genes were more fish-like than mammal-like.
Darwin Wins One 2006
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They are transcription factors that use a particular DNA binding motif called a homeobox, and they are found in clusters and expressed colinearly.
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They are transcription factors that use a particular DNA binding motif called a homeobox, and they are found in clusters and expressed colinearly.
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So, would the homeobox regulation of metamerism be considered as a "front-loaded" pre-adaptation?
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If it turns out that there are other possible mechanisms but that the homeobox regulatory mechanism was the least costly evolutionary speaking for primitive animals with out metamerism then MET gains additional plausibility
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Stelnicki EJ, Komuves LG, Holmes, Clavin W, Harrison MR, Adzick NS, Largman C: The human homeobox genes MSX-1, MSX-2, and MOX-1 are differentially expressed in the dermis and epidermis in fetal and adult skin.
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IF it turns out that the ancestral homeobox regulatory mechanism was extravagant it would make FLE more likely
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It now appears that the homeobox control mechanism for the production of segmented bodies evolved among organisms that were not segmented.
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So, would the homeobox regulation of metamerism be considered as a "front-loaded" pre-adaptation?
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