I don't know if you have ever heard a saying: "Daughters are like fathers, sons are like mothers"!
In fact, the inheritance of genes is really magical and interesting, especially newborn children, always carry the characteristics of two parents.
However, as the saying goes: "Seven points are destined, three points rely on hard work", heredity belongs to heredity, and the efforts of the day after tomorrow cannot be underestimated!
Today, let's talk to you about 6 "genetic types" that everyone cares about, and come and see what good genes your children have inherited from you?
01
The skin is not white
Mom and Dad multiply and take the average
Studies have shown that the heritability of skin color is between 63% and 72%.
And the inheritance of skin color generally follows the natural law of "multiplying and then averaging".
If both parents are black, then the child is unlikely to be white;
If the parents are white and black, then the child is likely to take the middle value, but it does not rule out the situation of one side.
If the parents are white, then the child's high probability will also be white!
The most typical "multiplication and then average" is the combination of black and white.
Barack Obama, the 44th president of the United States, has dark skin and his mother is white.
After Obama was born, his skin color was close to brown, that is, "white + black = chocolate"!
Still, most people want their children to be white, especially their daughters.
But what I want to say is that even if the child is a little darker, it doesn't matter, we are healthy!
In addition, it needs to be clear that it is impossible to change from "black skin" to "white skin" through acquired efforts.
However, you can improve dull skin tone by drinking plenty of water, staying asleep, and boosting your skin's metabolism.
In addition, sunscreen is also indispensable, and doing a good job of sun protection can effectively reduce the production of melanin.
It is no longer white, and no matter how much sunburn it is, it will really become a "black baby"!
02
Is hair inherited?
Especially baldness?
In fact, whether the child's hair is black or yellow, whether it is straight or rolled, whether it is thick or thin, these are not problems, as long as Tony teacher is there, you can dress your child like a fashion trendy child.
What are you most afraid of?
The biggest fear is the baldness caused by too much pressure and hair gradually falling out!
Will it be inherited in the end!
The answer is: Yes!
Thunderbolt!
But fortunately, baldness is mostly passed on from man to woman, and if you give birth to a daughter, then you can basically rest assured; and if you have a son...
Take a look below:
There was a time when people around the world were worried about the hair volume of The British royal prince George, precisely because great-grandfather Prince Philip, grandfather Prince Charles, and father Prince William were all bald!
Some scientists have found that:
The fact that more men are bald than women is related to androgen levels. Baldness is also not controlled by a single gene, and there is no question of whether the baldness gene is dominant or recessive.
Therefore, the anecdotal saying that "baldness is dominant in baby boys and hidden in baby girls" is questionable.
But whatever the reason, what is certain is:
Baldness is inherited and boys are more susceptible!
Yeah, the girls win when it comes to whether they're bald or not!
03
Will myopia be inherited?
But most myopia is "done" by the child himself
Many parents of myopia are most worried about whether their myopia will be inherited to their children.
Most studies have shown that myopia is genetically predisposed, especially highly myopic, but the way and causes myopia are inherited are complex.
There are many opinions about the causes of myopia, some studies believe that it is an environmental factor, some studies believe that it is a lack of outdoor exercise, and even some studies believe that it is related to education level.
Until now, the cause of myopia has not been conclusive, but among the many causes, the heredity theory is more marketable.
Among them, one of the most widely circulated myopia genetic sayings is:
If both parents are nearsighted, the risk of myopia is 4 times higher than if neither parent is nearsighted.
The child has been born, and we can no longer change his genes, but we may still have a second child!
For the sake of the second child, you still have to protect your eyesight, at least don't let the degree deepen anymore!
However, most children's myopia today is a bad habit of life...
Love to play mobile phones, do not love sports, love to eat sweets... These are the real culprits that lead to "myopia at a young age"!
04
Children with high IQ, look at the mother
But more to see the day after tomorrow companionship
I don't know if I've ever heard a proverb like this:
Daddy is stupid, mother is stupid.
It sounds ridiculous, but it actually makes sense.
Some studies believe that intelligence genes are more inclined to be inherited from the mother.
Because human genes associated with intelligence are mainly concentrated on the X chromosome. Women have 2 X chromosomes and males have only 1, so the mother's intelligence occupies a more important place in heredity.
After studying junior high school biology, we will know:
Boys are XY, X (eggs) are from the mother, and Y (sperm) is from the father.
Girls are XX, X (eggs) are from the mother, and X (sperm) is from the father.
Boys have only one X, which means that boys' IQ is inherited from their mothers; while girls have two X's, so their father and mother each have half the influence.
But in fact, the above sound very reliable statement only represents the views of some scientists.
It is still impossible to argue for the time being, but what we can be sure of is that IQ must be inherited, but it is not entirely genetically determined.
As the saying goes, heredity determines your ceiling, and the day after tomorrow determines whether you can reach the ceiling or not.
Therefore, we can completely rely on the day after tomorrow to save, this worrying IQ!
(Insert: in the primary school stage, children's poor homework is not an IQ problem at all, more of an attitude and habit problem, please be clear about this!) ）
Saving IQ actually depends on the family, and both parents are indispensable.
Research from the University of Washington found that stable emotions between mother and child help children develop their brains.
Therefore, mothers please keep a peaceful mind and stop calling their children "stupid".
The more stable your mood, the more complete his IQ will be.
In addition, the research results of Yale University in the United States and Newcastle University in the United Kingdom said:
The children raised by the father have high IQs, good grades, and a high career success rate.
Fathers have a big influence on their children's IQ, and this influence can last even until the age of 42.
The child's IQ not only depends on the genetic factors of the parents, but also on the daily life and companionship!
05
Good character is inherited from Dad
But the impact of the family environment should not be underestimated
Contrary to the inheritance of IQ, personality is mainly inherited from Dad.
One psychologist argues that:
Fathers play an important role in the formation of their daughters' sense of self-esteem, identity and gentle personality.
Children are born with their own personality traits, and each child is different, and the real reason for "personality like a father" is:
When parents get along, fathers can teach their daughters more important lessons and experiences in life, and every word and deed of the father is the object of children's learning and imitation, so the children will become more and more like fathers.
To put it bluntly, although personality inheritance exists, what determines the final personality of the child is the influence from the family, the words and deeds from the parents, and the harmonious atmosphere from the family.
Parents are usually grumpy and moody, and children are deeply affected by it, and it is easy to become angry and angry.
And parents are usually humble and polite, then the child will be deeply affected, and they are polite in their dealings with the world.
06
Determine the height of the child
It's not just genetics
Finally, whether heredity affects the height of the child is also of great concern to parents.
A person's height is actually affected by "congenital genetics + acquired intervention", of which congenital inheritance accounts for 80% and acquired intervention accounts for 20%.
The currently widely accepted way to calculate height is as follows:
Adult lifetime height (cm) for boys = (father height + mother height + 13) / 2 + - 7.5 (cm)
Adult lifetime height (cm) for girls = (father height + mother height -13) / 2 + - 7.5 (cm)
Among them, "+-7.5cm" is actually an acquired intervention, which can affect as many as 15cm.
If dad's height is 170cm and mom's height is 160cm, in theory:
The son is between 164 cm and 179 cm tall and the daughter is between 151 cm and 166 cm.
Therefore, even if the parents are not tall, it does not matter, as long as the acquired intervention is good, the son can grow to 179cm!
However, Developmental Psychology also states:
Human height characteristics are influenced by many pairs of alleles, and no one can yet know exactly how many alleles affect height traits and cannot expect to draw conclusions with a simple formula.
But in short, do a good job of the day after tomorrow's intervention, the child's height will certainly be able to grow tall, including the following three points:
1. Ensure adequate sleep during development
After the child goes to sleep, especially after 10 pm, the growth hormone secretion is vigorous and lasts for a long time, which is very conducive to growing tall.
2. Ensure sufficient outdoor sports
Ultraviolet rays in sunlight can promote vitamin D synthesis in the body, and vitamin D can promote calcium absorption, so outdoor exercise can promote bone development, and children can naturally grow taller.
3. Ensure healthy eating habits
Eat more foods rich in protein, calcium, phosphorus, magnesium and vitamins, milk, eggs, meat, fish and shrimp, fruits, nuts, etc. are suitable for eating more.
07
In fact, we don't need to bother or consider whether the child has heredity, or who is more similar, and it is never IQ that can affect the child's life, but the acquired environment.
Doesn't look white? It doesn't matter, wheat-colored skin represents health;
Is it possible to be bald? It's okay, tell your child to stay up late less, protect your hair, and try to avoid baldness;
Mom and Dad are myopic? It doesn't matter, supervise the child to use his eyes reasonably, look less at the mobile phone IPAD;
Mom and Dad don't have a high IQ? It doesn't matter, the efforts of the day after tomorrow can also be successful;
Afraid that the child will grow up with a bad personality? It doesn't matter, parents are gentle with their children, and children will learn your gentleness;
Mom and Dad aren't tall? It doesn't matter, strengthen your child's exercise, ensure his sleep, and he can grow tall!
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