For everyone who is afraid of duplicate Hitlers. Don't throw out the baby (for those who don't have the option today) with the bathwater
Aryeh Seter
Stop the human replication - some make money on a protest shirt
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Genetic replication is a form of reproduction in which at least two individuals are obtained that are identical to each other in all their chromosomes and genes. The degree of similarity between individuals is like the degree of similarity between identical twins.
How does normal reproduction take place?
The most common form of reproduction in the animal and plant kingdom is one in which there is a mother and a father and the offspring receives half the genes of the father and half of the genes of the mother. How is this done? The hereditary material in every cell of the body is found in the genes located on the chromosomes. The chromosomes appear in pairs, when chromosomes of the same pair carry genes for the parameters of the same traits. Thus, one chromosome can have a gene for brown eyes and the other of the same pair can have a gene for blue or also brown eyes.
In the cells of the human body, there are 23 pairs of chromosomes, a total of 46 chromosomes, but in the sex cells (eggs and sperm cells), only half the number of chromosomes, that is - 23. The sex cells are formed from cells that include a full number of chromosomes and undergo division into two. The chromosomes in the original cell are distributed randomly between the two sex cells that were created from it. Each chromosome from a pair finds its place in one of the two gametes formed from the original cell, so that a certain father or mother can have a huge number of options for different eggs and sperm cells and an even bigger number of options for offspring with a different combination of genes.
Why are siblings very similar, or a little, or almost not
On average - half of the genes of siblings to the same pair of parents are shared. Theoretically, although with a zero probability that is probably never realized, there can be siblings who do not have a single gene in common; On the other hand, there can be siblings with the same genetic load (and that too with zero probability - with the exception of identical twins, which is a different story). This is the reason why there are siblings who look more like each other and there are those who look quite different.
The natural form of genetic duplication in humans is identical twins. This phenomenon occurs when an egg, after fertilization by a certain sperm cell, during its initial divisions, separates into two separate blocks. Obviously, each part carries the same genetic load and at this stage, each part can continue to develop perfectly.
Cut embryo
In many animals, they were able to cause the appearance of identical twins, simply by mechanically cutting the embryo in the initial stages of pregnancy (when it is a mass of cells that do not yet have a specific purpose).
In some organisms in nature, genetic replication is the natural form of reproduction. In other animals that breed normally, there is also a phenomenon of genetic duplication under certain conditions.
The advantage of fertilization (besides the actual experience)
Evolution preferred the form of reproduction, in which two individuals mix their genetic material to create an offspring that is different from each of them and in general - to create offspring that are all different from each other in their genetic load - in contrast to the first organisms and many of the single-celled organisms to this day - that reproduce in a way that constitutes genetic duplication. The genetic diversity that exists in the population gives it many advantages that are not the place to detail and explain them, but the fact is that the method of reproduction that includes fertilization is the one that was established in nature, even though in the beginning everything went in the form of replication.
In genetic replication there is no fertilization
Genetic replication can perhaps be defined as reproduction without fertilization. The case of identical twins also meets this definition because although there was fertilization that resulted in one embryo, but shortly after that, it turned into two (without further fertilization - unlike non-identical twins where there are two fertilizations - two eggs and two sperm cells).
There are two ways of genetic replication carried out in animals. The one we mentioned and was already performed many years ago, is the technique in which an embryo is cut in the initial development stage into several pieces and then several embryos are obtained. Such replication is carried out when we do not yet know what came out of this embryo. The second method, which is controversial, is the method in which a genetic clone is created from an existing animal or person. This is done by taking a cell nucleus from the body, which contains all the chromosomes (including all the genetic load) and micromanipulating it as the nucleus of an egg from which its genetic material has been removed.
It is clear that in such a replication you get an embryo and then a baby that resembles the source of the replication like an identical twin - but it is still a baby. It is impossible to duplicate an animal or a person and get the same as them at the same age. The baby needs to be raised and educated; He will be less like the original than an identical twin, as he will grow up in a different generation.
A chance for offspring for those who don't have it
There is nothing to fear that someone or someones will reproduce Hitlers or Einsteins for us here. No one will fund it. In the meantime, an embryo can only be grown in a human womb, and this is also a limitation. Who would still want to do this - maybe someone who would want to duplicate himself. It will not be because of life extension, because the history of replication will have its own consciousness. It will be like a son (or daughter) for someone (or someone) who didn't get to have offspring in the usual way - and in this way they can give their genes another chance to have offspring in the world. What's wrong with that?
It doesn't sound worse than the fertility treatments accepted today, right?..
They knew the beginning of life
Yadan Aryeh Seter
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