Scientists from the USA have created in the laboratory a bacterium with a tiny genome, which contains only the genes necessary for survival and sheds new light on the genetic components essential for life
The article was first published on the Davidson Online website
the bacterium JCVI-syn3.0 (and in short: China-3), is the most economical creature in the world. Its genome consists of 531 thousand basesDNA only, which encode 473 genes. For comparison, for a non-sonic (E. coli), a small bacterium that is commonly used in many laboratories around the world partly because it is relatively simple from a genetic point of view, it has a genome of about five million bases, which encodes more than 4,000 genes. China-3's level of economy is no accident: its genome was created entirely in a laboratory, bstudy which is designed to identify the genes essential for existence of life.
Eighth in the genome
The compact bacterium was created by Craig Venter (Venter) and his colleagues at the research institute bearing his name in California. Six years ago, Venter and his team were the first to succeed in producing an "artificial" bacterium, whose entire genetic material was created in a laboratory. they took out all theDNA of mycoplasma bacteria (Mycoplasma mycoides), created an artificial copy of it in the laboratory and re-injected it into the bacterium.
The researchers used mycoplasma bacteria because their genome is relatively small anyway and contains only about a million bases. These are bacteria that live inside the bodies of mammals, in a permanent and stable environment, and during evolution lost many genes that would be necessary for them if they were required to adapt
6 תגובות
Proving a family relationship through genetic testing and DNA code testing, for paternity testing, body identification, etc., is an acceptable and common process. It is frequently used by police and military all over the world.
Recently, due to the uncovering of a mass grave from the Holocaust era in the Stuttgart area in Germany, this technology was used to establish a genetic information project, which will allow in the future to renew the relationship between Holocaust survivors and relatives living in different parts of the world, or to find a relationship between survivors and family members whose burial place is unknown.
Geneticist Michael Hammer of the University of Arizona is a world-renowned expert in the development of markers used in genetic identification. Hammer also participated in the famous study that proved that the families of the Jewish priests are descendants with a series of common genetic signs that are unique to them. The analyzes of the Holocaust project will be conducted in his laboratory.
Today, the number of survivors is decreasing, and their memory is fading. On the other hand, the memory contained in the DNA in the chromosomes and mitochondria is a permanent memory that overcomes aging, and also death.
It is impossible not to stand in awe of such a powerful message that binds the present, the past and the future together.
Our sages teach that no detail in human life is lost. The human genetic code is forever stored in a special bone in the human body known as the 'hazelbone', located under the nape of the neck. In the Talmud it is said that this object or certain parts of it cannot be destroyed.
In the literature of Kabbalah it is explained that this is the future of the human body to be rebuilt in a process known as 'resurrection'. The development of cloning technology brings these concepts closer to the simple and normative human consciousness.
The vision of the return of the members of the ten lost tribes and their sure identification as our own brothers and sisters, after a separation of almost three thousand years, during which we had no contact with them, also seems practical in light of the latest developments in the science of genetics. These are tens or hundreds of millions of people who as of now we have no idea who they are, or where they are and who are going to rejoin the people of Israel.
Each person also has their own unique spiritual code. This cipher is connected to the root of his soul, to the spiritual world and to the upper spheres with which his soul is connected in a special way.
Kabbalah teaches that a person's spiritual code can be identified by the letters of his name and date of birth.
The most interesting and fascinating detail would be to see the parallel that surely exists between the spiritual code and the physical-genetic code of the person. In light of the latest discoveries in the science of genetics as well as in the wisdom of Kabbalah, it seems that we may not have to wait long until we reach these insights and discoveries.
It should not resemble a form of life from the beginning of life on earth. It is a completely modern bacterium that has been stripped of everything that is not essential for life under the conditions that prevail in a test tube, including changes in temperature, food composition, environmental conditions, treatment of enemies, etc.
Maybe both. Life can also form in a star, and panspermia. It is enough if they were created somewhere in the galaxy and start wandering among the stars. Then the chance of DNA formation is big enough.
It's not really life from scratch ("They took out all the DNA of a Mycoplasma mycoides bacterium, created an artificial copy of it in the laboratory and reintroduced it into the bacterium")
531 thousand DNA bases that encode 473 genes
Too big and too complicated to create alone
The wet base should be simple and small, a duplicator only
The article stops mid-sentence.