Un nuevo estudio de la Universidad de Emory ha mostrado que es posible que cierta información sea heredada biológicamente a través de los cambios químicos que ocurren en el ADN.
The scientists then examined the gene M71, which controls the functioning of the odor receptor in the nose that responds to the cherry blossom smell.
They found that the gene's DNA coding had not changed but it did carry epigenetic marks that changed its behavior and caused it to be "expressed more" in the offspring.
This alteration also caused a physical change in the descendant mice's brains - they all had a larger glomerulus - a section in the olfactory bulb.
The scientists did discover that DNA from the sperm of smell-sensitized father mice had changed. They claim this is an example of an "epigenetic" alteration: transmitted not in the letter-by-letter sequence of the DNA, but in its packaging or chemical modifications.
El ADN no se cambia, lo que cambia es la expresión de los genes, que no es exactamente lo mismo. Por supuesto, esto hay que replicarlo y en su caso seguir estudiando los mecanismos de la epigenética.
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http://www.medicalnewstoday.com/articles/269607.php
The scientists then examined the gene M71, which controls the functioning of the odor receptor in the nose that responds to the cherry blossom smell.
They found that the gene's DNA coding had not changed but it did carry epigenetic marks that changed its behavior and caused it to be "expressed more" in the offspring.
This alteration also caused a physical change in the descendant mice's brains - they all had a larger glomerulus - a section in the olfactory bulb.
The scientists did discover that DNA from the sperm of smell-sensitized father mice had changed. They claim this is an example of an "epigenetic" alteration: transmitted not in the letter-by-letter sequence of the DNA, but in its packaging or chemical modifications.
El ADN no se cambia, lo que cambia es la expresión de los genes, que no es exactamente lo mismo. Por supuesto, esto hay que replicarlo y en su caso seguir estudiando los mecanismos de la epigenética.
El autor de este articulo es fan de stargate y los goa'uld.
Yo tengo el recuerdo de haber vivido en forma de pez hace unos 385 millones de años.
No me creo nada.
¿Duplicada? meneame.net/story/recibir-herencia-genetica-conocimiento-adquirio-padre-madre