Many people think that they are genetically predisposed to diseases and that certain sores are transmitted to them from their parents or other close relatives. In this issue we will talk about whether this is true and why each of us is a genetic mutant.
Each cell of the body contains a DNA molecule, which in turn is packed in 23 pairs of chromosomes. Each chromosome in these pairs is duplicated, thus making a backup. The fact is that each of us from birth is a carrier of genetic mutations, but due to the presence of a copy of the chromosomes, the disease simply does not develop, because the body reads all the necessary information from the chromosome that is still healthy. Unfortunately, if two parents have a mutation associated with the same disease, then the risk of having a child with disabilities becomes very high and is equal to 25 percent. That is why it is extremely important to pass screening genetic tests that can guarantee the absence of mutations in the unborn child.
The human genes themselves are some instructions, according to which various proteins are formed in our body, which is why genetic diseases are so dangerous. Hemochromatosis, in which iron accumulates in human tissues and organs, cystic fibrosis with severe disorders of the respiratory organs, and, of course, congenital deafness and blindness, is particularly worth highlighting. If we talk about more common ailments, the DNA of your parents can contribute to the appearance of allergies, diabetes, obesity and even caries. But these diseases are significantly influenced not only by related genes, but also by your immediate lifestyle.
It will be important to note that mutations occur not only through the fault of your relatives, but also under the influence of the external environment. The presence of errors in DNA is a normal process of human evolution, but serious changes and the accumulation of such errors in the genome are most often studied by oncologists. Cancers from radiation and carcinogens are the main causes of human mutation on our planet.
In conclusion, we would like to emphasize that even insignificant gene mutations lead to a change in the color of hair, eyes, and also the appearance of such features as good voice or musical taste, which, for example, can be passed on to you through several generations. All of them are absolutely safe and make the genetic code with each new generation more and more diverse.