vincenteam2

Many thanks for your answers. So if my understanding is right, the first cell of a new organism should receive brand new telomers on its chromosoms (or that chromosoms in germinal cells keep their telomers) ! Am I right ? Does germinal cells have a special treatment that keep them "younger" ? I supose that post-repair DNA diseases remain very exceptional in germnal cells, otherwise most of them would lead to abortion. Last question : Would you say that DNA diseases explain very little about aging process ? If you find time to answer me, that would be very kind Pierre.

Hello, I have a question about the aging process. We can often read in the scientific papers that part of the aging process is due to DNA diseases. Following this principle, I wonder why those mutations and diseases accumulated within a lifetime in the DNA molecule do not seem to be transmitted to our childs ? Briefly, why do babies still born young ? Are there any specific DNA repair systems within the gamet production or within the first embriologic cell divisions ? Do DNA really degrades ? Are there any other explanation that could explain this paradox ? I thank you for your precious help. Pierre.