In order to guess the color of the child's hair, there is no need for testing. To do this, it is enough to determine which of the parents have dominant genes, and who have recessive ones.
Expecting a miracle, expectant parents want to know in advance not only the gender of the unborn child, but also other details. Many parents are interested in what the hair color of the future child will be. Theoretically, it is easy to find out, starting from the existing laws of genetics. In order to determine the color of the child's hair, you do not need to take any tests.
What affects the hair color of an unborn child?
It is clear that the genes of both parents influence the hair color of the unborn child, but in one of the parents these genes are dominant (strong), and in the other, recessive (weak). The factor of dominance or recessiveness can be determined independently. People with dominant genes have brown or green eyes, pigmentation on the skin, curly hair. People with recessive genes, as a rule, have a negative Rh factor, perfectly straight hair, the absence of any pigmentation on the skin, and poor blood clotting. So, if the father has dominant genes, then the child is likely to inherit his hair color. It so happens that both the father and the mother have dominant or recessive genes, then the result will be unexpected. A child may inherit the hair color of a distant relative with strong dominant genes.
It should be noted that a child's hair color may change during the first five years of life, and more than once. Very often, a baby is born with sparse dark hair. It happens that the genetic dominance of the parents does not play a role in the formation of the hair color of the future baby. Hair color depends on how much melanin the baby has at the time of birth. Of course, genes influence the amount of melanin, but the work of the baby's endocrine system also affects. The hormonal background, formed at the time of birth, is also responsible for hair color.
Can hair color change?
As a rule, the first hairs (fluff) in the baby gradually fall out a few months after birth, and then the hair of the color that corresponds to the formed genotype of the child begins to grow. It also happens that even in adolescence, a person's hair color changes dramatically. This is influenced by a change in hormonal levels, as well as puberty.
Based on the foregoing, it can be noted that both the genes of the parents and the formation of the hormonal background at the time of birth affect the color of the child's hair. Some parents know what hair color a child is most likely to have if, for example, grandmother, dad and uncle have black or red hair.
