What color will the child’s hair be?
Even before the baby is born, parents want to know how it will look and who it will look like. Today, you can get answers to many questions without expensive tests and ultrasound. The rules of genetics will help with this. They allow you to determine, without much time and effort, what hair color the child will have. To make a prediction, it is enough to analyze the appearance of the mother and father.
What hair color will the child have?
For the inheritance of certain traits and characteristics from ancestors, special molecules are responsible – DNA. They consist of individual particles – genes, each of which corresponds to a certain external characteristic. These particles are of two types: dominant and recessive.
The former always win over the latter and are passed on to the future generation. When two strong or weak genes come into battle, it becomes more difficult to predict the outcome. The genetics of more distant ancestors is involved in the “struggle”.
External signs that manifest themselves as dominant include:
brown-eyed;
tendency to hair loss;
curly hair;
dark hair color;
skin pigmentation;
right-handedness;
short stature, etc.
External signs due to recessive genes are:
straight hair;
blue eyes;
light hair;
pale skin, etc.
To determine what the child’s hair color will be, it is necessary to analyze the possible outcomes of the “struggle” of different genes. Practice shows that in the overwhelming majority of cases the strong win over the weak.
For example, if the father has black hair and the mother is blonde, their son or daughter will be either a brunette or the owner of dark blond curls. The shade in any case will be much darker than that characteristic of a recessive trait. The structure of the hair is also not always 100% borrowed: instead of curls, the child may have a little curly hair.
To calculate what color the child’s hair will be, it is not enough to analyze the external data of only mom and dad. The calculation includes three generations on both lines.
For example, an ubrunet and a blonde can give birth to a fair-haired and fair-skinned baby.
This is not a miracle: the dad’s genotype contained a recessive gene, which he inherited from his blonde grandmother or fair-haired grandfather. It did not appear in their child, but it worked after a generation.
Practice shows that in Slavic families, children with light brown hair are most often born. However, the color often changes when the child reaches 12 years of age.