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 ZimZalabim rated 36 months ago - An interesting little video explaining the amazing developmental control genes known as the 'homeobox genes', responsible for building the same body parts in all animals.
The homeobox gene responsible for the formation of eyes in a mouse for example, could be put into a fruitfly genome ...
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4 Reviews
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- mai-and rated 4 months ago
- vil du gerne lære om evoulutionen?? læs her!
- ZimZalabim rated 36 months ago
- An interesting little video explaining the amazing developmental control genes known as the 'homeobox genes', responsible for building the same body parts in all animals.
The homeobox gene responsible for the formation of eyes in a mouse for example, could be put into a fruitfly genome and would still result in the formation of perfect fruitfly eyes.
Basically the homeobox says 'build head here, build eyes there, build limbs here and here, and so on. Additional sets of genes further down the construction hierachy ensure exactly the right type of structure for that particular species is built, eg a mammalian eye for a mouse, or a compound eye for a fruitfly.
This is pretty convincing evidence that all creatures alive today at one time shared a common ancestor and this body construction plan proved so successful and adaptable it has been conserved throughtout hundreds of millions of years of evolution and is now shared by all animals on earth.
- joelus rated 5 months ago
- From the page: "In 1994, Walter Gehring discovered the eyeless gene, which guides formation of fruit fly eyes. As an experiment, Gehring put a mouse's eyeless gene into a fruit fly, resulting in normal fruit fly eyes. The same holds true for homeobox genes for wings, legs, even heads. This discovery indicates that animals descended from a single common ancestor that passed along to them a set of homeobox genes, used to build a wide variety of forms from just a few basic body plans. "
- frietje344 rated 13 months ago
- a video that shows that the whole radiation of animals, the whole spring of animals, is been fed by the same set of genes.
we are all the same ! yeah
send this forward to some racists :-)
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