Is the world breaking free from the genetic shackles and undermining the Darwinian world? This is what a fairly recent discovery, epigenetics, suggests.
Our genes can only be modified by a slow evolution of humans over the centuries, but also by the environment and this evolution takes place in small steps, on the scale of a lifetime. This also means that the genetic “fatality” is no longer valid and that we are all the conductors of our life, our changes and our balance.
22,000 genes
Remember that we have 22,000 genes. Genome decoding has shown that these genes only occupy 2% of our genome. We spoke at the beginning of junk DNA. Science is always pretentious when it doesn’t understand. However, these 98% are essential. Genes are effectors, the rest is regulation.
Without falling into the caricature, we can compare the chromosome to a Christmas garland comprising thousands of bulbs that are genes and tens of thousands of switches. Geneticists have learned about light bulbs, now it remains to find out what the switches turn on and off.
Epigenetics modify genes in small and personal ways. For example, it is likely that all environmental factors have a role, which explains why these changes are found in the genes of an entire exposed population, but important events have their role. Thus we have proven the power of epigenetics in the offspring of survivors of great famines but also that of survivors of September 11 in New York … Which is an explanation of the genetic diversity between individuals of the same community.
Transmissible
Another peculiarity, these modifications are transmissible, from the next generation and for all the generations to come. Epigenetics probably control the expression of our genes.
We know how to find pathological mutations, and there is still a lot of work ahead. But practical applications are already underway in hundreds of laboratories specializing in this new discipline. An example: the quality of milk depends on several hundred genes… It is an important stake for the food future of the planet, however it will take time and thousands of experiments to find the right adjustment. This will perhaps leave enough time to define the ethical rules that this research will not fail to give rise to.
For more information: “How epigenetics will change our lives”, a program on the VYV Fréquence Médicale channel.
The guest is Professor Joël de Rosnay. We don’t know where to start his biography. From the Pasteur Institute to MIT… We will summarize by saying that he is a major figure in science in our country; and the author of many best-sellers, the last of which has just been released: “La symphonie du vivant”. Poetic title, but subtitled: “How epigenetics will change your life!”. With epigenetics, medicine enters a new dimension. It proves that our daily behavior (diet, stress, physical exercise, lifestyle…) inhibits or activates some of our genes.
Is the world breaking free from the genetic shackles and undermining the Darwinian world? Our evolution is also done in small steps, on the scale of a lifetime; and above all, these modifications are transmitted. This also means that the genetic “fatality” is no longer valid and that we are all the conductors of our life, our changes and our balance. Joël de Rosnay goes even further by imagining a world of tomorrow that goes from a representative democracy to a participatory democracy … A program that is both practical, because the examples are numerous, and which will give food for thought.
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