In the process of forming the hair color of the future of the child involved genes of both parents. Note that any genes, including those responsible for hair pigmentation, can be either dominant or recessive. In other words, strong or weak. In the process of the birth of the future man strong, dominant genes block the action of weak recessive and passed on to future generations. That is, if the father the gene for hair color is dominant, it will be inherited by the son or daughter.
If both parents are dominant or recessive genes, the "result" of their "fight" will be unpredictable. In the case can interfere with the genes of grandparents, influencing the outcome. In this case, the hair color of the future baby can be determined only with a certain degree of probability.
To determine the factor of dominance or recessivity their genes by the following criteria. If you have brown or green eyes, normal blood coagulation factor or a tendency to baldness (in males) and genes are dominant. Recessive genes are characterized by straight hair, lack of skin pigmentation and a negative rhesus factor of blood.
Don't forget that genetics is not mathematics. It does not give accurate answers to the questions of heredity, but only determines the most likely possibility. But in the process of transferring genes may include the genes of relatives of several generations. The result is unexpectedly born in a family is a red-haired child, who inherited the hair color from some distant relative. This is especially true at birth of first child.
Also do not forget that during the first 5 years of life a newborn's hair color may change more than once. Usually they change in the first or second years of life, and are formed completely by the age of 5 years. But in puberty because of changes in the amount of testosterone in the body of a teenager hair color may change again.
Advice 2: How to determine the color of eyes of a child
Have the child color the eye may change during the period of his first year of life, especially it is noticeable in blondes. Most of the children at birth have blue-gray or bluish-gray eyesAMI. Around 6 months it becomes clear what will be the final color of eyes. Children with dark skin at birth are usually dark grey or brown eyes. Colour eyes define most of the parental genes, but even the great-grandmother or great-grandfather can bring unexpected contribution.
The color of the eyes — a charming and interesting topic, involving many researchers over several centuries, until, until science has helped to better understand the origin of colorand eyes, and most importantly — how it is inherited. When it comes to predicting the colorand eyes of the child, you can say one thing for sure: the baby will be born with blue eyesAMI. Almost always eyeand newborns have blue colorom, which can later darken as sunlight on him. About 3-4 years eyesand baby are usually formed and acquire their permanent colorthat remains for a lifetime, whether it is blue, amber, grey, green, Kareem or dark brown.
Inheritance of colorand the eyes perhaps from the point of view of science. There is an established opinion on what color eyes the baby inherited according to Mendel's laws. Therefore, under this law, the color of the eyes can be inherited in much the same way as color of hair: dark genes are the dominant colorand that is, distinctive features (phenotypes) encoded by them, will take superiority over the hallmarks, which are a lighter color.
It is likely that parents who have a dark colorom eye (brown), kids with dark eyesAMI. Accordingly, the offspring of parents with a bright colorof th eyewill also have light color eyes, and the baby's parents, the color of the eyes which is different, will have a color eyethat is more dominant. For example: dad - light green eyesand my mom blue, in this case, the child can eyesand to be blue at 60% and 40% of the green because the blue color is dominant. At the same time, the most common colorof th eye around the globe is brown and the rarest colorof th eye is green.
Advice 3: How to change hair person for years
Hair is constantly growing "organism." This is due to the cellular activity of the follicle, which serves as storage for the hair follicles. Over the years, the activity decreases, the first gray hair, hair growth slows down.
In the hair follicle continuously occurs mitosis (division) of cells. They become Mature, lose their nuclei and ceratitida. Keratin is the protein substance from which consist of hair. Over time, hair falls out, so there is a natural renewal process. But the follicles remain the same, as they were given from birth, and will sostarivaniya with the body.
With age you produce less melanocytes - cells that produce the pigment (melanin). The pigment located in the cortical substance of the subcutaneous part of the hair. There it is mixed with air bubbles, which leads to the loss of natural color of hair. He is bright, and then completely white. Gray hair is more and more weak, difficult to style. Such changes can happen because of age-related changes in the body, due to experienced stress, illness, heredity. Gray hair can occur at any age, this process is different for each person. But, on average, the first signs of visible aging closer to 30 years.
With age, change not only hair color but also the growth rate. To grow a long braid would be long. This is due to the fact that slows metabolic processes in the body in the follicle cells are not so intense. It is the pressure generated in the follicle during mitosis causes hair to grow up. To awaken hair follicles, you can use stimulators for growth on the basis of Minoxidil. The drug should be applied on the scalp every 12 hours. Not allowed to take breaks, because then the desired effect will not follow. To conduct such therapy will take a lifetime.
As they grow, change and increased density of hair. It is reduced by 10-15%. This is due to dystrophy of the hair follicle. Dystrophy causes the hormone dihydrotestosterone (DHT). Hair thinning, shortened the phase of active growth, normal hair transforms into vellus. After a while the follicle grows connective tissue, and the hair stop growing. Susceptibility to the hormone DHT are different and is determined by heredity. For this reason hair may not poredet 15% and 70-80%, which leads to baldness.
Male pattern baldness is common in men and women.
As for getting rid of gray hair, here the medicine is powerless. Hide the signs of aging will help the hair.