Whose genes determine the IQ and appearance of a child?

Due to the pressure of national policies and the inheritance of traditional ideas, it is already a big problem for prospective parents to have boys and girls. In fact, having boys and girls is the same, and it has its natural laws. Folk remedies can't achieve the real goal. I believe that science is the last word!

who decided the sex?

Everyone knows that there are two kinds of sperm in men: one contains X sex chromosomes and the other contains Y sex chromosomes. If the sperm of the X chromosome becomes attached to the egg, a girl will be born; If the sperm of the Y chromosome is combined with the egg, a boy is born.

But everyone wants to know-who decides whether X binds to X or whether X should bind to Y, whether it is sperm or egg?

the mystery of chromosomes-how did the once-male-female theory

divide human gender when having children? This has always been a mystery.

It is generally believed that some people say that giving birth to boys and girls depends on the sperm of the man; Others say that having boys and girls depends on the choice of the woman's eggs.

the first statement: the charge of the chorion of a female egg affects the sex

French scientists found that the charge of the chorion of a female egg affects the sex, that is, when it is positively charged, it can attract X sperm and become a female fetus; When negatively charged, it attracts Y sperm and becomes a male fetus. Normal people have 23 pairs of chromosomes. Among them, 22 pairs are autosomes, both men and women are the same; There is also a pair of sex chromosomes, which are different between men and women. Women have two X chromosomes, while men have only one X chromosome and the other Y chromosome. There are more than 5, genes on 46 chromosomes, and each gene carries genetic information. Chromosomes accurately transmit genetic information to future generations through a series of activities.

Germ cells (sperm and eggs) undergo twice meiosis, so that the original 23 pairs of chromosomes are reduced by half to 23. When sperm and egg combine to form a fertilized egg, each chromosome in the sperm nucleus is paired with the corresponding chromosome in the egg nucleus one by one, so that the chromosome number of the fertilized egg is restored to 23 pairs. One chromosome in each pair comes from the father and the other from the mother, so the new life formed has the genetic information of both parents.

Women only produce one type of egg (X), while men produce two types of sperm (X, Y), so the following two situations will occur during fertilization:

(1) Eggs combine with sperm with X chromosome to produce XX fertilized eggs, which will develop into women.

(2) Eggs combine with sperm with Y chromosome to produce XY fertilized eggs and develop into males.

Second statement: H-Y antigen determines sex

If the influence of environment, hormones and other factors is put aside, further research is made from the sex chromosome of human embryos. Some scholars have found that the presence of H-Y antigen on the sex chromosome can determine the formation of men. This view was popular for some time. Soon, it was found that this H-Y antigen was also found in women's chromosomes.

Third statement: "Testicular Determinant" (TDF)

Later, scientists from the Wechsler Biomedical Research Institute in the United States found that it is a genetic factor that determines the sex of men and women, that is, "Testicular Determinant" (TDF). As long as there is this factor on the chromosome, the embryo will form a male fetus after seven weeks, otherwise it will be a female fetus. Therefore, sex is determined by the type of sperm at the moment of conception.

well, now you know, at least scientific research now believes that the type of sperm determines the sex of a child, do you understand? Isn't it? So don't blame your wife. Look at yourself first.

XXXY, who will decide the IQ and appearance of the baby?

who inherited the height? -half of the parents.

For nearly half a century, due to the development of the whole world economy, people's nutrition has generally improved, so that the physical growth of children has increased year by year, and the arrival of puberty has gradually advanced. The situation in China is consistent with that in Europe, America and other Asian countries. For example, compared with the 195s in Guangdong, the height of boys aged 7 to 18 increased by 8.74 cm and their weight increased by 5.38 kg. Girls increased by 6.81 cm and gained 4 kg. The age of menarche for girls is 4 months earlier every 1 years on average. These objective facts naturally make teenagers and parents have higher requirements for height in recent years than before.

who decided the height?

So, apart from nutritional status, how much of a child's height is in the hands of parents?

it is said that-7%.

Parents' heredity is the main factor that determines a child's height, because 35% of the factors that determine a child's height come from his father and 35% from his mother. If both parents are not tall, it depends on the baby's 3% efforts the day after tomorrow.

So, the saying that my father is short and my mother is short is not necessarily correct!

whose personality is inherited? -mom.

When you see this problem, most people will say that it is decided by parents, which is not wrong, but the same parents will give birth to children with different personalities, which shows that there is another factor that affects the children's personality while parents decide.

who decides personality?

The parents' personality determines the children's personality, which is based on biological science. A fertilized egg breeds a healthy child, which can better explain this problem from the perspective of genetic inheritance. However, in the process of growing up, a fertilized egg must absorb the energy of the environment to grow up, and what kind of energy distribution it absorbs, together with genetic factors * * *, determines the children's personality today, which is a more scientific analysis. The energy of the environment is the content with certain information, which will definitely affect the child's character.

Because personality is the embodiment of information, and information is the different combination of material particles, from the point of view that photons are the basic particles of material, photon combination is photon information, and the mass of material brings more information. The quality of the mother's eggs is relatively large among both parents, and the fertilized eggs grow in the mother's body for 1 months, which shows that the mother has a greater influence on the child's personality than the father. However, different fathers have different conclusions. If the father's sperm quality is higher than other people's sperm quality, it will contribute a lot to the child's personality.

because a fertilized egg will be born after growing in the mother's body for 1 months, it will be greatly influenced by the environment reflected by the mother before birth. After birth, the external environment will have a great influence on the child, because the child will eat and drink after birth, and will constantly absorb the photon information energy of all frequencies from the environment. The photon energy distribution of the environment has a certain influence on the information energy distribution of the child, so the child was born in different years, and the photon information of the environment is different, and the child's personality will be on the original basis. Especially in the first year, the child's quality can be doubled, which has a great influence on the child's personality. When the child grows to 7 years old, his brain development is more than 7% of that of an adult, and his personality has been finalized. This is what China people say: Look at the old when you are young, and look at the old at the age of three, which is reasonable. This article also supports the statement that the child's animal sign will affect the child's personality to varying degrees. Being born in different months will also have a certain impact.

Comprehensive analysis shows that a child's personality is determined by his parents, and at the same time, one year's environmental information affects his personality. The main reason is that cells can only grow up by absorbing environmental energy, which carries information, influences and determines their personality. (Zhao Fengjun)

But some people say that personality is inherited from the father. Although the formation of personality has innate elements, it is mainly post-influence. Comparatively speaking, dad's influence will be greater than mom's. Among them, the role of fatherly love has a greater influence on daughters. A psychologist thinks: "Father plays an important role in the formation of his daughter's sense of self-esteem, identity and gentle personality." Another expert suggested that a father can teach his daughter many important lessons and experiences in life, making her character more colorful.

well, that's all we know now. what do you think?

who inherited the intelligence? -mom.

intelligence is inherited to some extent, and it is also influenced by acquired factors such as environment, nutrition and education. According to scientists' assessment, the influence of heredity on intelligence accounts for about 5%-6%. As far as heredity is concerned, mothers are smart, and most of the children born are smart. If they are boys, they will be smarter. The reason for this is that human intelligence-related genes are mainly concentrated on the X chromosome. Women have two X chromosomes, while men have only one, so mother's intelligence occupies a more important position in heredity.

who decides IQ?

Please note:

Boys are XY, so boys' IQ is all inherited from their mothers, and girls' IQ is XX, so girls' IQ is half influenced by their fathers and mothers.

Because the IQ of girls is influenced by both father and mother, it will have a neutralizing effect. Therefore, the distribution of girls' IQ will show a normal distribution, which is an inverted bell, with the most in the middle and less on both sides.

Then, because boys are completely influenced by only one party, the distribution of boys' IQ will be biased at two extremes. In other words, boys are more talented, but at the same time, there are also many boys among fools.

what does this story tell us?

1. If you want to judge whether a boy is clever or not, just look at his mother. However, how do you judge whether a boy's mother is clever or not? ......。 I can't think of an easy way ... .

Do you want to marry a smart person or a stupid person?

2. Then we use the probability to calculate:

The probability of having a boy = 1/2; The probability of having a girl =1/2.

When giving birth to a boy, the influence of the mother on the IQ of the boy = 1

When giving birth to a girl, the influence of the mother on the IQ of the girl = 1/2

So the ratio of the influence (expectation) of the mother and the father on the IQ of the next generation is

1 * 1/2+1/2 * 1/2: * 1/2+. You must marry a smart girl. In this way, there is still a 75% chance that your child will turn over, and life is still full of hope.

2. It's a girl, if you think you're stupid, because you have a 75% chance of rummaging through other people's dishes. Ah, I can't say any more. In a word, the weather is good recently, so go out for a walk.

3. When you see a boy is smart, the probability that his father is smart is % (it should be said that even if his father is smart, it doesn't matter to him), but the probability that his mother is smart is 1%.

So, if you are considering marrying a very smart boy, you should be careful of his mother, who may be a calculating mother-in-law.

On the other hand, when you see a boy who is stupid, yes, he is usually rich. This is God's arrangement. In order to prevent mankind from dying, God will make the stupid man rich, so that he can marry a smart girl.

whose inheritance is the appearance? -concrete analysis of specific problems.

skin color: always follow the natural law of "multiply and then average", leaving people no choice. If parents have dark skin, there will never be children with white skin; If one side is white and the other is black, most of them will give their children a "neutral" skin color, and some will be more biased towards one side.

who decided the appearance?

Eyes:

The eye shape and size of children with eye shape are inherited from their parents, and the big eyes are dominant compared with the small eyes. If one of the parents has big eyes, the children with big eyes may be bigger.

Double eyelids Double eyelids are dominant inheritance, and babies with single eyelids and double eyelids are likely to be double eyelids. But both parents have single eyelids, and the average child also has single eyelids.

Dark colors such as eyeball color black are dominant inheritance compared with light colors. In other words, people with black eyes and blue eyes will not have blue eyes.

long eyelashes are also dominant. As long as one parent has long eyelashes, it is very likely that the child will inherit long eyelashes.

Nose: Generally speaking, the nose is big and tall, but the nostril width is dominant. If one of the parents has a straight nose, it is very likely to be passed on to the child. The genetics of the nose will continue into adulthood, with a short nose as a child and a high nose as an adult.

Ear: The shape of the ear is inherited, and the big ear is dominant relative to the small ear. As long as one of the parents has big ears, then the child is likely to have a pair of big ears.

Jaw: It is a non-negotiable dominant inheritance. Either parent has a prominent big chin, and children often have a similar chin without exception, which is somewhat bizarre.

Obesity: Children will have a 53% chance of becoming obese. If one parent is obese, the probability of children being obese will drop to 4%. This shows that about half of being fat or not can be determined by human factors. Therefore, parents can make their posture symmetrical through reasonable diet and full exercise.

Baldness: The creator seems to be partial to women, so baldness is only passed on to men. For example, if a father is bald, the probability of passing it on to his son is 5%, and even his mother's father will leave his 25% probability of baldness to his grandchildren. This sexual genetic tendency of passing on men but not women makes men helpless.

whelk: This facial symptom that bothers boys and girls is actually related to heredity. Because if both parents have suffered from acne, the prevalence rate of their children will be 2 times higher than that of those without family history.

Leg shape: Those fat-piled legs that resemble parents can be shaped into slender and strong legs through full exercise. However, if the legs are too long or too short because of heredity, they can't be reshaped, so they have to be left to nature.

how to optimize your genes before the baby is born?

Food can also change your genes

My husband and I are both very black, but I don't want the baby born to be a black angel.

black couples want to have white babies, and pregnant women can eat more foods rich in vitamin C. Vitamin C can interfere with skin melanin production, reduce melanin precipitation, and make baby's skin white, tender and delicate.

Recommended foods: tomatoes, grapes, oranges, cauliflower, wax gourd, onions, garlic, apples, Rosa roxburghii, fresh dates and other vegetables and fruits, among which apples are the best.

My husband and I both have dry skin, which is easy to chapped in winter. How can we spare the baby from this crime?

Husband and wife have rough skin, so pregnant women should often eat foods rich in vitamin A, which can protect skin epithelial cells and make children's skin delicate and shiny in the future.

Recommended food: animal liver, egg yolk milk, carrot, tomato, green vegetables, fruits, dried fruits and vegetable oils.

My family has the gene of yellow hair. My sister's child is still yellow at the age of one. Will my baby inherit it?

If the husband and wife have bad hair, pregnant women can eat more foods rich in vitamin B, which can improve their children's hair quality. Recommended foods are lean meat, fish, animal liver, milk, bread, beans, eggs, laver, walnuts, sesame seeds, corn and green vegetables. Black and shiny.