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Homeobox gene

Definition

noun, plural: homeobox genes

One of a group of genes with a common DNA sequence (a homeobox) that code for a homeodomain, and is involved in bodily segmentation and cell differentiation during embryonic development.


Supplement

Hox gene is an example of a homeobox gene. The homeobox sequence codes for a 60 amino acid protein domain known as the homeodomain. The main role of homeodomain is to act as a switch that controls gene transcription.


See also: Hox gene.


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Logical impossble 4 natural selection 2 generate new species

... that matter? I think not. And the reasons lie in knowing that there are homeobox genes for eye formation and that when one of them, the Rx gene in particular, is activated ...

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by gamila
Thu Jun 11, 2009 1:40 pm
 
Forum: Evolution
Topic: Logical impossble 4 natural selection 2 generate new species
Replies: 11
Views: 363

The Fiber Disease

... Trichinella worm, found in pigs? Something caused a mutation on a Human gene to put this in our family. Now, if trichinella is allowed to form a ... to other species, it will also do the same to us, if the DNA, like in Homeobox genes are similar. For instance, certain genes in the drosophila ...

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by Skytroll
Thu Sep 28, 2006 3:28 am
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 749209

The Fiber Disease

... Has this not been thought of. Or is this a construction to add the two genes needed for the human body to be more like an animal? A human gene was ... animal and plant, all will share same genes in one way or another. The Homeobox Domain. Why would one put a human gene in a rice plant? Just what ...

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by Skytroll
Thu Sep 21, 2006 2:21 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 749209

distinction b/t homeotic genes and master genes?

The homeobox is a DNA sequence which codes for a particular DNA binding domain called the homeodomain. I have also found out that the definition of a homeotic gene is not that it contains a homeobox as I previously thought. It is actually based in the genes ...

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by herb386
Tue Jul 11, 2006 10:00 am
 
Forum: Genetics
Topic: distinction b/t homeotic genes and master genes?
Replies: 6
Views: 1149

distinction b/t homeotic genes and master genes?

in the case of the SRY-gene it is a kind of 'masterswitch' --> the genes it turns on or doesn't turn on determines ... the sexdetermination. --> homeotic genes are indeed as already said genes with a homeobox encoding for the homeodomain. These genes yield homeotic transformations in ...

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by sdekivit
Thu Jul 06, 2006 7:17 pm
 
Forum: Genetics
Topic: distinction b/t homeotic genes and master genes?
Replies: 6
Views: 1149
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