I have two children of my own, the boss is fourteen and the boss is twenty-three. From the birth of the boss, according to his personality characteristics and my long-term observation, the boss's personality is not like me or his father, but from the appearance and personality characteristics, it seems that he has inherited more of his grandfather's personality characteristics. For the record, we have never lived with our children's grandfather, so there is no such thing as being influenced by our children's living habits. With the increase of age, this genetic feature becomes more and more obvious. Similarly, the older children in my sister's family and my brother's family have similar situations.
The ancients often said: atavism! Perhaps in the first child, this statement of the ancients will be more reflected.
The genes that determine IQ mainly exist on human X chromosome. The male chromosome (XY) and the female chromosome (XX), so the boy's X chromosome can only be obtained from his mother, while the girl's is one for her father and mother, regardless of the number of children. So the IQ of a boy is inherited from his mother, and half of the IQ of a girl is inherited from his parents. My little nephew is a good example of reality.
My little nephew is very clever. Like his mother when she was a child, there is another interesting thing. My little nephew often cries when he is fine. Once he was tired of his mother's crying, he said to him, "I don't know why you cry about everything!" " My dear mother joked, "Stop it, you always cried when you were a child, and people in the street were bored to death by you." . At that time, it was obvious that in addition to IQ, personality was also inherited from mother.
Generally, the second child of the same sex will be smarter than the first child, which is not caused by heredity and has a lot to do with the environment in which the child lives. As the saying goes, one child is raised by books and the second child by pigs. This is a true portrayal of many families, especially our family, where the boss has everything, mom and dad are by his side, and all the delicious and fun things are his own; Born in a competitive environment, the second child has to fight for everything by himself, so the boss is basically generous and peaceful. The second child loves to fight for it, which will make people like it, giving people the impression that the second child is smarter than the boss. Actually, it's environmental, not genetic.
It is said that eye size and double eyelids are dominant inheritance, and children inherit big eyes. Skin color is also dominant inheritance, and the child's skin color is the middle color of parents' skin color. This is not allowed. The eldest of our two children inherited my big eyes and my father's white skin. The second child inherited my father's small eyes and my dark skin (also two daughters, feeling very sorry for my sister).
Who will pass on the IQ of the first child to his parents?
Every parent wants their children to be smarter than others' children. If the child is smart, it also means that our genes are good!
German scientists investigated and followed 654.38+00000 children to study the relationship between IQ and genetic factors. The results show that about 70% of children with excellent parents' intelligence are excellent. About 70% of children whose parents have low intelligence are also low. It can be seen that IQ is related to both parents.
Regardless of the first child or the n-th child, regardless of the acquired education, nutrition and other factors, only genetic factors, the genetic impact on intelligence will account for about 50%-60%.
Most genes related to intelligence are concentrated on the X chromosome. Women have two X chromosomes, while men only have 1. Therefore, the genetic factors of intelligence and the intelligence genes of the mother occupy an important position, so the mother is smart and most of the children born will be smarter.
If you have a boy, you will be smarter. If you have a girl, your intelligence may be the average level of your parents.
If a boy thinks he is stupid, he must marry a smarter girl, and his baby will have a higher chance of being smart.
But intelligence is not completely stable in the genetic process.
Generally speaking, children's IQ is usually close to that of their parents, but not exactly the same. The IQ of children born to high IQ parents is relatively higher than that of ordinary people, or close to the average IQ of ordinary people, while the IQ of children born to low IQ parents is relatively low.
(The above pictures are all from the Internet, and the infringing contact is deleted. )
My friend and his wife, one is a doctoral student and the other is a graduate student. Their son is strong and strong. Apart from eating, it is really difficult to learn, even the multiplication formula table is difficult to recite. So my friend and his wife feel wrong when they look at their children's IQ in the hospital. In fact, they really look like themselves. Therefore, the son gave the couple a strong sense of frustration.
Therefore, there may be differences in IQ in the process of inheritance, that is to say, the IQ of children and parents does not converge or approach, but presents the opposite situation.
My Dabao looks like me in some ways, but many of them look like my father. I am not good at math, but my father is good at math. I am good at Chinese, and my children learn Chinese well.
Some people say that the first child born, whether male or female, has a lot to do with his mother, especially in IQ. I don't think so. Why do you say that?
From the perspective of genetics, children's looks are closely related to heredity, such as appearance, personality, movements, expressions, voices and so on.
Some scientists have done a lot of research. They believe that the influence of heredity on children's intelligence can exist objectively, but it is not absolute. The influence accounts for 50%~60% at most, and the rest is related to acquired development.
I have heard a saying that if a mother's IQ is higher than that of her father, she will definitely give birth to a boy, whose IQ is the same as that of her mother;
If dad's IQ is higher than mom's, then a girl will be born, and the girl's IQ is the average of mom and dad.
It means that human beings are constantly optimizing, so they will only inherit better genes. But this statement is not scientific.
American scientists did a study and counted the IQ correlation of more than 2,000 families. Data analysis shows that the mother's influence on her son's IQ is 0.443, only slightly higher than the father's 0.4 1 1, which means that the child's genetic IQ is not entirely from the mother, and the acquired influence cannot be ignored.
The acquired environment, education and continuous training are all catalysts for children's IQ.
Because children's intelligence is divided into two kinds, one is fluid intelligence and the other is crystal intelligence.
Fluid intelligence is greatly influenced by heredity, while crystal intelligence is a cognitive ability based on experience gained in practice.
For example, our language ability and imagination are constantly developing.
Therefore, don't think that parents are not smart, and children must be mediocre. Parents can provide a good environment and communicate with their babies more.
And encourage them to experience life instead of putting all their experiences in various cram schools.
Cultivating children's reading ability as early as possible and enhancing their curiosity are of great help to their intellectual development.
After three years old, I can teach my baby to read. My daughter began to study at this time, and she used many methods to cultivate her interest. The most effective way is to educate her through the internet. The accomplishment of cat handsome is quite good. My daughter has used 1 for many years and likes it very much. Now she often tells me stories, which is great.
For newborn babies, novice parents' favorite question should be who their children look more like. Many parents will argue endlessly about their children's looks and IQ, trying to prove that their genes are stronger, hoping that their children will inherit their own good genes. In fact, parents don't need to argue. It is clear after reading the following three sentences.
1. The influence of parents on children's height accounts for 35% each.
Every parent wants their children to grow taller, no matter boys or girls, having a tall person will greatly save face value.
Generally speaking, 70% of a child's height is inherited by his parents and 30% is influenced by the day after tomorrow. The influence of parents' genes on children's height is equal, accounting for 35% each. Therefore, if both parents are taller, most children are taller. Even if one parent is not very tall, children can grow taller by supplementing nutrition and strengthening exercise the day after tomorrow.
Second, the father's personality is more likely to be passed on to his children.
A person's personality is partly inherited from his parents, but mainly from his father. Many people will say that their personality is similar to their mother's, mainly because their mother spent a long time with them in the process of growing up and was influenced by the acquired environment.
Therefore, it is very important for a father to have a good personality and good temper in the future. Secondly, people who accompany your children to grow up need to set an example and teach them some civilized and polite habits to form a good character.
Third, the influence of mother on children's IQ is three times that of father.
Every parent wants his children to be smart and witty, and hopes that their children can get rid of their shortcomings. Inherit all the advantages of parents, but as far as IQ is concerned, the father inherits very little from the child, the IQ of the child is mostly influenced by the mother, and the intelligence of the boy is more influenced by the mother.
Therefore, if the parents are at school and the mother has a high IQ, then the possibility of a high IQ of the child in the future is great; However, if the mother's IQ is relatively low, then both parents need to work harder on their children's future education. If they are not born well, they need to make up for it through the efforts of the day after tomorrow.
Children's IQ will mainly be inherited from their parents' IQ, while the father's IQ will be inherited from the mother. This is related to the sex of the child, and has little to do with the number of children, even if there is, it is insignificant. But there are rumors that babies who have a second child are often smarter.
It is believed that human IQ is related to the X chromosome, that is, if it is a son (XY), then the X chromosome comes from the mother, and the IQ of the son is mainly inherited from the mother. If it is a daughter (XX), then the mother and father each have an X chromosome, and the daughter's IQ depends on the father and mother, and the two are mixed in half.
As for some popular science, it is very important to marry an excellent woman with high IQ if you want to have a healthy and excellent baby. This is based on facts, not imagination.
To sum up, it is rumored that the second baby is smarter. As for whose IQ the first-born child will inherit, it depends entirely on his gender. If it is a female treasure, then half of the parents will hang out. If it is a male treasure, then it will completely inherit Ma Bao's IQ. Good luck with your pregnancy.
At present, it is reported that the genetic material related to IQ exists on the X chromosome, which means that 0/00% IQ of boys/kloc is passed on to their mothers, and half IQ of girls is passed on to their parents.
In fact, the logic of this conclusion is very imprecise.
What is IQ?
IQ is not a quantifiable variable, but a comprehensive concept consisting of a series of variables such as memory, comprehension, logical ability and language expression ability. Some of these variables are difficult to quantify.
So I think discussing IQ is actually an incorrect proposition.
IQ exists on the X chromosome. Does it mean that all the genetic information related to IQ, such as memory and language expression ability, exists only on the X chromosome?
Impossible, is there a biological Daniel to answer?
Personally, I think the upper limit of IQ (IQ here refers to a comprehensive concept) comes from heredity, and the lower limit comes from the development of growth process.
Newborn babies don't know anything. With the increase of months, IQ has changed dramatically, which is the influence of the environment, or development.
However, no matter how clever a person is, he cannot break through the biological limit, that is, the genetic limit. For example, hereditary dementia, it is useless to try hard the day after tomorrow.
On the other hand, we are all ordinary people, and the IQ of ordinary people should be within a constant range, which has a greater impact on ordinary people. I think it's still the influence of the environment.
Therefore, instead of worrying about where children's IQ comes from, it is better to study hard the day after tomorrow.
Hello. I heard the neighbor next door praise a chubby little boy in the elevator yesterday. "Wow, this doll is really beautiful and smart! Just like his mother, a child like his mother is blessed. "
It turns out that there is an old saying in China, "Boys will be as smart as their mothers, and girls will be as smart and beautiful as their fathers." At first glance, you must want to ask, girls are like her mother and boys are like her father, so they are not smart.
In fact, children's intelligence is not determined unilaterally by heredity. It is caused by the living environment around us, the nutrition brought by food, the acquired education and other factors. Science has proved that heredity affects IQ by 50%-60%. In early childhood, 40% of children's IQ is determined by their parents' genetic factors.
The above viewpoint is not absolute, because the Bachelor of Genetics is a very complicated subject.
In fact, intellectual development is not limited to the above theory, it is a very complicated genetic theory. In addition to congenital inheritance, the acquired educational environment also has a great influence on children's intelligence.
Premature babies or children with mental retardation, if someone can always help him explore the world with language, they will gradually become no different from ordinary people, or even develop better.
The level of IQ is mainly based on the brain, and the structure and physiological function of the brain are related to heredity, so IQ has a great relationship with heredity.
The IQ of the first child, the second child and the nth child is determined by the genes in sperm and eggs. So IQ has something to do with parents. This relationship belongs to polygenic inheritance.
However, the education the day after tomorrow is also very important. For example, wolf children are actually born with no IQ problem, but they have no acquired education, which leads to the same living habits as wolves. And IQ belongs to polygenic inheritance, at least how much does heredity affect IQ? It has something to do with people's definition and measurement of intelligence.
Gao Erdun investigated the children of more than 600 scientists, and found that they were smarter than the average children, and the heritability of IQ reached 88%. Of course it has something to do with both parents.
Some scholars in the UK have found that 16% of the first-born children are more likely to receive higher education, and the first-born children are more eager for education than their brothers and sisters.
1, most of them will be more careful in pregnancy preparation.
The first child is always expected more, and parents will do better and more carefully in pregnancy preparation and prenatal examination. 1 Fertility, both boys and girls are welcomed by parents, but some may want boys or girls in the second child. With the experience of the first child, it is easier to relax at this time.
2. Parents are younger, and the quality of sperm and eggs is better.
First-born parents are generally younger, and the quality of sperm and eggs will be better, which is also more conducive to cultivating excellent healthy and intelligent children.
Moreover, at this time, my mother's body is relatively healthy, and all aspects of her functions are better when she is pregnant, and her influence on her children is also better.
The first-born children are usually expected by their parents.
The first child is kept by the book, and the second child is kept as a pig.
When the first child is raised, it will be more careful, and the second child will generally be stocked. And as the boss, they are often asked to take care of their younger brothers or sisters, so they may be smarter relatively.
1, be prepared for pregnancy
Stay away from alcohol and tobacco, and be happy when you are pregnant.
2. Have a prenatal check-up when you are pregnant
Prenatal examination can find fetal problems and correct them in time.
3. Give children adequate nutrition.
Whether it is folic acid and pregnancy preparation in the early pregnancy, iron supplementation in the second trimester to prevent anemia, and calcium supplementation in the third trimester, these have a great relationship with the health and intelligence of the fetus, so parents need more careful care to raise a healthy and intelligent child.
Whether it is the first child or the second child, the IQ of the child is related to both parents. However, it is worth mentioning that IQ is not only related to genetic factors. In addition to heredity, it also has a certain relationship with the baby's acquired environment, upbringing and other factors.
I once read a report that German scientists investigated the relationship between IQ and genetic factors and found that about 70% of children with excellent parents' intelligence are excellent. About 70% of children whose parents have low intelligence are also low. It can be seen that IQ is related to both parents.
Of course, intelligence is not completely stable in the genetic process. Generally speaking, children's IQ is usually close to that of their parents, but not exactly the same. The IQ of children born to high IQ parents is relatively higher than that of ordinary people, or close to the average IQ of ordinary people, while the IQ of children born to low IQ parents is relatively low. In addition, there may be differences in IQ in the genetic process, that is to say, the IQ of children and parents does not converge or approach, but presents the opposite situation.