Chris-

Noun 1. genetic defect - a disease or disorder that is inherited genetically
A genetic disorder is an illness caused by abnormalities in genes or chromosomes.
from what i read all genetic defects are a negative thing..
might be wrong thou...
defects and mutations aren't the same thing ... a genetic mutation is any change in the DNA sequence good or bad ... even though the word mutation also has a negative connotation
eh i might be wrong... but i would still call it a mutation not a defect :P

Kasia,

I'm aware of how it is defined in a dictionary but that isn't always the final word on the meaning of a scientific term. First let me say, you are absolutely right that this is a genetic mutation. That does not mean that it isn't also a genetic defect. Also, the term genetic defect typically has a negative connotation, as you said, but not all genetic defects cause death or are deleterious to the extent that most people think they are based on the connotation. I've heard the term genetic defect used to describe mutations that were not outrightly deleterious in various biology courses but do not deny that it is typically used for more detrimental genetic mutations. At any rate, liquid coming out of this "horn" during drinking, etc., is probably not a beneficial trait which would technically make this a defect using either definition.

Chris

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Christopher V. Anderson
Ph.D. Candidate
Department of Integrative Biology
University of South Florida
cvanders@mail.usf.edu
Professional Website; Chameleons! Online E-Zine; Chameleon Care & Information Center (CCIC)

Im glad this thread was revived, i was reading it a few days ago and i asked the owner to send me some pics, glad i got to see some

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Sam, Karma, Titan, Bonnie, Clyda, Rhea, Orcus, Venus, Vulcan, Thor

your right ...unless it isn't genetic :P
but in that case were both wrong
but true if it has negative traits it is a defect.... too bad because it looks rather interesting..( not suggesting that the looks of it outweigh the discomfort to the little chameleon ) hope he grows out of the " side effects" of his little horn