-
No. Most of the blacks are in Africa, and the black ** is mainly to prevent sweat glands and subcutaneous blood vessels from being burned by the sun, and it is also a part of the body's immune system, building the first line of immune defense for the human body to avoid being infected by mold and bacteria in the tropical jungle. The darker the black race, the stronger the immunity and the easier it is to survive in the tropical jungle.
In the long process of evolution, people with genes capable of synthesizing large amounts of pigments survive, others are eliminated, and in the end, only those with this gene remain. So Africans have these genes, and they have already synthesized a lot of melanin when they develop in their mothers.
-
It is not possible to genetically determine their skin color.
-
The black of black people is because their ancestors originally lived in the tropics, and in order to adapt to the living conditions in the tropics, they slowly evolved into black **, which contains a lot of melanin, which is conducive to their survival in such an environment. Later, due to migration and worldwide human trafficking, blacks spread throughout Europe and the United States.
Melanin can be skincare:
The melanin in the sun can filter the harmful light in the sun, remove free radicals caused by ultraviolet radiation, and prevent the aging caused by the degeneration of elastic fibers. It also protects the DNA in the cells from the mutagenic effects caused by harmful factors, thereby reducing cancer.
of occurrences. The amount of melanin determines the color:
The color of human beings depends on the content and distribution of melanin, and the structure, function and number of melanocytes directly affect the content of melanin in melanin, which is also the determining factor for the production of melanin. In the human body**, there are about 4 million melanocytes. There must be three basic substances for the synthesis of melanin, and tyrosine is the main raw material for the manufacture of melanin.
Tyrosinase is the main rate-limiting enzyme for the conversion of tyrosine to melanin, which produces melanin in response to tyrosinase.
-
Can Africans really turn white through makeup? The African girl tried it and saw how it went.
-
Contemporary can't, and when the African environment becomes better, melanin will slowly degrade and gradually turn white from generation to generation, our ancient Chinese are also very black even if they are northerners, why is it white now, this is also the reason!
-
Nowadays, indoor labor is increasingly replacing outdoor labor, and there is a tendency to turn white.
-
Yes, you can do cosmetic white surgery, and the singer Mike Jackson is black.
-
Yes, because beauty technology is now higher. Unless you're African.
-
Yes, I don't live in Africa, I went for surgery, and MJ did it.
-
Africans who live in China for twenty years** do not turn white because their skin color is genetically determined.
The color depends on the subcutaneous pigment, also known as the pigment, one of which is called melanin, which can reduce the damage of ultraviolet rays to the human body. People in Africa near the equator have been exposed to strong ultraviolet rays for generations, and in order to reduce the damage of ultraviolet rays, only more melanin is secreted to protect**, which is the result of natural evolution.
Sub-Saharan Africa is commonly known as black Africa, which is authentic carbon black, especially the black community near the equator, which is the main source of black people in the world, and the native ethnic groups in Australia are also black.
-
Africans can also get albinism.
Albinism is a genetic attribute of vitiligo caused by tyrosinase deficiency or decreased function** and adherent organ, resulting in a deficiency or synthesis disorder of melanin. The patient's visual fingers show that the omentum is colorless, the iris and pupils are pale pink, and he is afraid of light. **, eyebrows, hair, and other body hair are white or yellowish-white.
-
African albinos refer to people with albinism in Africa, and generally to black people with albinism in Africa.
Albinism is a relatively common disease caused by a deficiency of melanin in its appendages**. Such patients usually lack melanin in the whole body**, hair, and eyes, so they are manifested as retinal pentapigments of the eyes, the iris and pupils are pale pink, photophobia, and always squint when looking at things. **, eyebrows, hair and other body hair are white or white with yellow.
-
It is the same as in albinos, caused by a genetic mutation. In Africa, such people are considered ominous, and most albino blacks are killed as sacrifices by sorcerers after not living long.
-
Africans can also get albinism.
Albinism is a genetic attribute of vitiligo caused by tyrosinase deficiency or decreased function** and adherent organ melanin deficiency or synthesis disorder. The patient's retina is pigmentless, the iris and pupils are pale pink, and they are photophobic. **, eyebrows, hair, and other body hair are white or yellowish-white.
-
Africans get white disease, and their hair will turn white. Because black Africans have black skin and hair, they feel that people with albinism are a symbol of good luck.
-
Africans are black themselves, but after they have albinism, the whole ** will become very white, white and scary, including the hair will turn white, and at the same time, they will be discriminated against by racial people.
-
If Africans suffer from albinism in Africa, the fate will be particularly tragic, there is a local saying that every part of these people is a miracle medicine, and people can cure diseases if they eat it, so albinism is a particularly dangerous race in Africa.
-
Africans have darker skin, and if they have albinism, they must be in an uneven state of color, probably like a cow's complexion, and it must look ridiculous.
Work is needed in every country, and every labor can be exchanged for money, so as to buy what you want, which is a well-defined lawAs the laziest country in the world, the work of Africans is unimaginable, and many people wonder how lazy can Africans be to be lazy after working and getting paid? Let's put it this way, they will never do it alone if they can do 5 jobs slowly. >>>More
Foreign scientists have studied that theoretically human beings can live to 1500 years old, if the brain is preserved alone, there is no accident brain can always survive, there are many factors that affect life expectancy, living habits, environment, mood, accidents, etc., now what we can do is to stay away from pollution, good living and eating habits, exercise, good mood, live a year old or can.
You'd better not go, the environment in KTV is not good, the sound is noisy, the air is dirty, don't go to crowded places if you're pregnant, it's easier to be infected with diseases, and it's not good to have a cold or something.
Hip-hop can be danced by anyone, it just depends on whether you are willing to stick to it. >>>More
I can't say if I can, I can't see if I can meet it, if I do, I can't restrain it, I can't restrain myself if I like it in my life, no matter whether the result is happy or sad, it's not a bad thing. If you haven't met the kind of person who is very special in your heart, you don't have to watch others fall in love and fall in love yourself, it's not interesting at all. >>>More