Who decides the children?
Before the baby is born, the mother will definitely argue with the father about whether the baby in the belly is male or female and what it looks like.
What do you want the baby to look like? Eyes like you, nose like him? Physically like you and intellectually like him?
Whose genes determine all this? Let's see!
0 1 height inheritance: half
First of all, let me talk about the height of the child. In addition to nutritional status, 70% of children's height initiative is in the hands of parents. Parents' heredity is the main factor that determines a child's height, because 35% of the factors that determine height come from his father and 35% from his mother. If the parents are not tall, it depends on the baby's 30% efforts. the day after tomorrow
02 intelligence inheritance: mother is very important
The second is the inheritance of intelligence, which has certain heritability and is also influenced by acquired factors such as environment, nutrition and education.
According to scientists' assessment, heredity will affect about 50%-60% intelligence. Genetically speaking, mothers are smart and most children are smart. If they were boys, they would be smarter.
The reason is that human intelligence-related genes are mainly concentrated on the X chromosome. Women have two X chromosomes, while men have only one X chromosome, so the mother's intelligence plays a more important role in heredity.
In order to prove this point, let's review the biology knowledge of high school first: how do boys and girls grow up?
The boy is XY, the boy is x (egg) and the biological father is y (sperm).
The girl is XX, X (egg) comes from the mother, and X (sperm) comes from the father.
So it's the husband's fault to have boys and girls. Don't blame your mother for her stomach, hahaha?
But please note that boys are XY, so boys' IQ is inherited from their mothers and girls' IQ is XX, so half of girls' IQ is influenced by their parents.
Because the IQ of girls is influenced by their parents, there will be a neutralization effect, so the IQ distribution of girls will be normal, inverted bell-shaped, centered in the middle and less on both sides.
Then this boy is completely influenced by only one side, so the IQ distribution of this boy will be biased at two extremes. In other words, men are more talented, but at the same time, there are many boys.
What do these tell us?
0 1. You must judge whether a boy is smart, just look at his mother.
02. Then we use probability to calculate:
Probability of having a boy =1/2; Probability of having a girl = 1/2.
When giving birth to a boy, the mother's influence on the boy's IQ = 1.
When giving birth to a girl, the influence of the mother on the IQ of the girl = 1/2.
So if you:
This is a boy who thinks he is stupid. You must marry a smart girl, so that your children have a 75% chance to turn over and life is still full of hope.
She is a girl who thinks she is stupid. Because you have a 75% chance to convert other people's shares, please try to have a baby girl.
When you see a smart boy, the probability that his father is smart is 0% (it should be said that even if his father is smart, it will not affect him), but the probability that his mother is smart is 100%.
If you consider marrying a very clever boy, you must be careful of his mother. She may be a planned mother-in-law.
Personality inheritance: the influence of father
Character is inherited from father. Although there are innate factors in the formation of personality, it is mainly acquired. In contrast, the father's influence will be greater than that of the mother, and the father's love will have a greater influence on his daughter.
Psychologists believe that "fathers play an important role in the formation of their daughters' self-esteem, identity and gentle personality."
Some experts suggest that fathers can teach their daughters many important courses and life experiences to make them more colorful.
Before the baby is born, the mother will definitely argue with the father about whether the baby in the belly is male or female and what it looks like.
What do you want the baby to look like? Eyes like you, nose like him? Physically like you and intellectually like him?
Whose genes determine all this? Let's see!
Appearance inheritance: a 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, they will never have fair and delicate children. If one is white and the other is black, most of them will give their children a "neutral" skin color, and in some cases, their prejudice will be even greater.
Eye shape: The shape and size of children's eyes are inherited from their parents. Big eyes are mainly inherited small eyes. If parents have big eyes, the children with big eyes may be bigger.
Double eyelids: Double eyelids are the main inheritance. Babies with single eyelids and double eyelids are most likely to be double eyelids, but parents are single eyelids and children are generally single eyelids.
Eye color: dark colors such as black are mainly inherited from light colors. In other words, people with black eyes and blue eyes don't have blue eyes.
Eyelashes: Long eyelashes are also dominant. As long as parents have long eyelashes, children may inherit them.
Nose: Generally speaking, the nose inherits arrogant, high and wide nostrils. One of the parents has a straight nose, which is likely to be passed on to the child. Nose inheritance will continue into adulthood. When the nose is short, it may become taller in adulthood.
Ears: The shape of ears is hereditary. Compared with small ears, big ears are hereditary. As long as one parent has big ears, then the child is likely to have big ears.
Jaw: This is an obvious legacy that cannot be "discussed". It is a little strange that any parent's chin is protruding, and the child's chin usually looks like a chin without exception.
Obesity: Children have a 53% chance of becoming obese. If one parent is obese, the possibility of obesity will drop to 40%, which shows that about half of obesity or non-obesity can be determined by human factors. Therefore, parents can completely balance themselves through a reasonable diet and proper exercise.
Baldness: It seems that the creator only favors women, and baldness is only passed on to men. For example, if the father is bald, the possibility of passing it on to his son is 50%. Even the mother's father left a 25% chance for his grandchildren.
Acne: This facial disease that worries both boys and girls is actually related to heredity, because if both parents have acne, the prevalence rate of children will be 20 times that of children without family history.
Leg shape: legs similar to parents' fat accumulation can be shaped into slender and strong legs through proper exercise. But if the legs are too long or too short for genetic reasons, they can't be remolded and they can only let go.
How to optimize genes before the baby is born?
My husband and I are black, but the baby I don't want is also a black angel.
Black couples want to have white babies, and pregnant women can eat more foods rich in vitamin C. Vitamin C will interfere with the production of melanin in the skin, reduce the precipitation of melanin, and the baby's skin will be white and delicate.
Recommended food: tomatoes, grapes, oranges, cauliflower, wax gourd, onions, garlic, apples, peppers, fresh dates and other fruits and vegetables, among which apples are the best.
My husband and I have dry skin, which easily breaks in winter. How can we not let the baby suffer from this crime?
Husband and wife have rough skin. Pregnant women should always eat foods rich in vitamin A, protect skin epithelial cells, and make children's skin delicate and shiny in the future.
Recommended food: animal liver, egg yolk milk, carrots, tomatoes, green vegetables, fruits, dried fruits and vegetable oils.
My family inherited the yellow hair gene. My sister's child is one year old and still has yellow hair. Will my baby inherit the same genes?
If the couple's hair is not good, pregnant women can eat more foods containing vitamin B, which can improve the quality of their children's hair, not only thick, dark and shiny.