On the question of the origin of blood types, blood type knowledge about the origin of the four bloo

Type B Origin: Compared to type O and A, type B is a blood type that appeared at a later stage in anthropology. Produced between 10,000 and 15,000 BC, blood type B is a mixture of Caucasian and races and lives in the mountainous regions of the Himalayas.

Personality: People with blood type B do not care much about the things around them, are lively and active, and have a tendency to go their own way.

AB blood type Origin: AB type is a new blood type produced by the mating of type A Caucasians and type B Mongols, and in the blood group research of 1,000 or 1,200 years ago, AB type did not exist, and it was the latest and rarest blood type, accounting for only about 5% of the total population.

Personality: This type of person has some characteristics of blood type A and blood type B, and has a complex and changeable personality, with an obvious tendency to "not force yourself". When you work hard for a certain goal for a period of time and find that the benefits are not large, you will immediately give up.

Both type A and type B traits, do things in a planned way, but have no patience, are easily impulsive, have sharp intuition, do not like to be conformist, have a changeable temperament, and sometimes show extreme personalities. Good at dealing with people, paying attention to reasonableness, hating duplicitous people, and having a strong critical spirit. Type AB is not about human feelings, does not talk about love, and the relationship between men and women is a very simple thing in the eyes of type AB, and it will not be as complicated as people with other blood types.

AB type has a very kind side to others, and at the same time likes to say witty things to ridicule others, AB type has a very positive attitude towards things, but if he wants to get along with others and not offend anyone, it is simply like reluctantly forbidding his hobbies.

Actually, there are no such sayings, so let's first understand how to distinguish blood types and the definitions of various blood types, asking this kind of question only means that you don't understand blood types at all.

As you all know, there are four types of blood types, namely blood type A, blood type B, blood type O, and blood type AB. But did you know that the four major blood types did not appear at the same time, but were formed one by one over a long period of history? So, what is the origin of the four major blood types, and what are the physical characteristics and distribution rules of people with different blood types?

Let's find out.

Of all the blood types of Jean Squire, blood type O has the longest history. It appeared about 60,000 to 40,000 years ago, when humans ate a simple "meal": weeds, insects, and fruits that fell from trees.

Later, humans slowly learned to hunt and began to eat the meat of other animals. Some scientists believe that most people on the planet have blood type O at this time. For this reason, blood type O is also known as the "hunting blood type".

Taking China as an example, in the Yellow River Valley, the birthplace of Chinese civilization, which is today's Henan, Shanxi, Shaanxi and other places, the proportion of people with type O blood is the highest. This also shows that the people here are indeed the oldest inhabitants of the Central Plains.

Between 10,000 and 10,000 years ago, people with blood type A appeared. The formation of blood type A is related to the fact that the human diet has become omnivorous. During this period, farming became the main mode of production of people, and wild birds and beasts began to be domesticated and turned into poultry and domestic animals.

In normal times, people can not only eat the grains, vegetables, and fruits they grow, but also kill two chickens and a pig from time to time, make some meat dishes, and adjust the recipe. Until now, in areas with relatively developed agriculture, such as Western Europe and Japan, people with blood type A account for a high proportion of the population. Therefore, blood type A is also known as "farming blood type".

Talking about destroying blood type B appeared about 10,000 years ago. At that time, some primitive humans migrated from the savannah to the cold and barren Himalayas. Climate change may be a major factor in the development of blood type B.

When it's cold, people eat more meat and drink milk to provide more calories for the body. Therefore, most of the peoples with this blood type are nomadic people. This blood type was first found in the race, and as they migrated to the European continent, the proportion of this blood type in the population of Eastern Europe was also very high.

Compared to people with blood type O and blood type A, people with blood type B are more physically fit and more resilient to environmental changes. These are all physical traits of nomadic peoples. So, blood type B is called"Nomadic blood type"。

It is inferred that among the ethnic minorities in ancient China, such as the Xianbei, Khitan, Xiongnu and other ethnic groups, blood type B was the main blood type. Today, among the northern ethnic groups such as the Mongols and the Manchus, people with blood type B also account for the majority.

Of the four blood types, AB appeared the latest, less than 1,000 years ago, and is the product of a mixture of agrarian people with blood type A and nomadic people with blood type B. Their numbers are also relatively small. In China, for example, only 5% of the population has AB blood type, and most of them are concentrated in the Yangtze River basin.

However, people with AB blood type inherit the resistance of blood types A and B, and their immunity system is stronger. It seems that they are really the product of "optimal combination"!

Categories: Health Wellness >> common sense of the human body.

Problem description: There are four main types of human blood types, so who prescribes these names? Is it based on the English initials?

Analysis: There are different types of blood was proposed by Austrian pathologist and immunologist Carl Landste Hobina (1868-1943) in 192. He had taken blood samples from himself and five colleagues and synthesized 30 samples for observation.

He found that some of the samples were successfully mixed, while others were condensed (sticking together. He then realized that not all samples were identical. In the samples of two people, the red blood cells had a substance called anti-gen (antigen), which he labeled with A. The samples of the other two had another antigen, which he labeled alphabetically with b; There was only one person's sample, neither the A antigen nor the B antigen, but the serum had two antibodies, as did his own blood, which he labeled with O (which means no antigen).

Later, he found that there was a group of people whose blood had both A and B antigens, and he called it AB type.

Since then, blood has been divided into types A, B, AB, and O.

Blood types are divided into four common blood types: A, B, AB, and O. Expressed in terms of genes:

The gene for blood type A is "AA" or "AI".

The gene for blood type "B" is "BB" or "BI".

The gene for the "AB" blood type is "AB".

The gene for blood type "O" is "II".

1) If the father is of blood type A and the mother is also of blood type A, then their genes have "A" or "I", so their children may have genes of "AA" or "AI", then the child can only have blood type A.

2) In the same way, if both parents have blood type B, their genes have "B" or "I", so their children's possible genes are "BB" or "Bi", then the child's blood type is B.

3) If the father is blood type A (B) and the mother is blood type B (A), then their genes have "A", "B" or "I", then the child's genes may be "AB", "AI", "BI", "II", then the child's blood type is AB, A, B, and O.

4) If the father is type O and the mother is also type O, then the gene is only "I", then the child's gene is "II" and the blood type is O.

5) If the father's (mother's) blood type is type O, and the mother's (father's) blood type is type A (b), then their genes have "A" ("B"), "I", then the child's genes may be "AI", "BI", "II", then the child's blood type is type A, B, and O.

The blood type was discovered in 1900 by the Austrian Carl Landsteiner.

Carl Landsteiner, a famous Austrian physician and physiologist, was born on June 14, 1868 in Vienna, the capital of Austria. After graduating from the Faculty of Medicine at the University of Vienna, Jiyuan Wang stayed at the school to study chemistry.

Carl Landsteiner was awarded the Nobel Prize in Medicine and Physiology in 1930 for discovering the first three of the four blood types A, B, O, and AB in 1900. He died in 1943.