Genetics What influences the occurrence of hereditary diseases in a child?
What influences the occurrence of hereditary diseases in a child?
Each of us is a carrier of at least 10-15 recessive mutations. And they can be inherited. That is why even absolutely healthy parents have a risk of having a baby with serious disorders.
The manifestation of certain inherited diseases in humans, according to scientists, is associated with several reasons:
- a change in the number of chromosomes;
- disorders in the structure of the parents' chromosomes;
- mutations at the gene level.
@ekaterina-gribacheva There is no escape, but you can undergo a molecular genetic study — this is a laboratory method that allows you to determine the structure of genes at the molecular level. Testing makes it possible to identify features (polymorphisms) or mutations in the structure of genes.
In general, mutational variability, mutations in the genetic material of cells
A lot of mutations and wrong amount of genetic material