Mothers must argue with their children and their fathers about whether the children in their stomachs are male or female? Who does it look like, right? What do you want your baby to look like? Eyes like you, nose like him? Figure like you, IQ like him? Then you have to see, what genes determine this?
Whose genetics is the height? - Half of the parents
In addition to nutritional status, 70% of the initiative of a child's height is in the hands of the parents, and the genetics of the parents are the main factors that determine the height of the child, because 35% of the factors that determine the height come from the father and 35% from the mother. If both parents are not tall, it depends on the 30% effort of the child the day after tomorrow.
Whose genetics is greater in intelligence? - Mom
Intelligence has a certain hereditary nature, and is also affected by acquired factors such as environment, nutrition, and education. According to scientists, genetics affect intelligence accounted for about 50%-60%, in terms of genetics, the mother is smart, most of the children born are smart, if it is a boy, it will be more intelligent. The reason is that 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.
To prove this, let's first review the knowledge of high school biology: how do baby boys and girls come about?
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.
Therefore, giving birth to boys and girls is the fault of The husband, do not blame the mother's belly is not contentious.
Please note that boys are XY, so boys' IQs are all inherited from their mothers, and girls are XX, so girls' IQs are half influenced by their father and mother.
Because the IQ of girls is affected by both father and mother, there will be a neutralizing effect, so the distribution of girls' IQ will show a natural distribution, that is, inverted bell shape, the most in the middle, and less on both sides.
Then because boys are completely affected by only one party, the distribution of boys' IQ will show a bias at two extremes. That is to say, there are more male geniuses, but at the same time, there are also many boys among the fools.
What do these tell us?
01. You have to judge whether a boy is smart or not, just look at his mother.
02. Then we use the probability to calculate:
The chance of having a boy = 1/2; the chance 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 mother's influence on the girl's IQ = 1/2
So if you:
01. It's the boy who thinks he's stupid, and you have to marry a smart girl. In this way, your child has a 75% chance of turning over, and life is still full of hope.
02. It's the girl who thinks she's stupid, because you have a 75% chance of flipping over people's plates, so try to have a baby girl
03. When you see a boy who is smart, the chance that his father is smart is 0% (it should be said that even if his father is smart, it has no effect on him), but the probability that his mother is smart is 100%.
Well, if you are thinking about marrying a very smart boy, you have to be careful of his mother, who may be a very calculating mother-in-law.
Whose genetics is greater? - Dad
Personality is the father's genetic large. Although the formation of personality has innate components, it is mainly acquired. Comparatively speaking, Dad's influence will be greater than Mom's. Among them, the role of father's love has a greater impact on the daughter. According to one psychologist, "Fathers play an important role in the formation of their daughters' self-esteem, sense of identity, and gentle personality." Some experts have suggested that fathers can teach their daughters many important lessons and experiences in life, making their daughters' personalities more colorful.
Whose genetics is greater? -- Specific analysis of specific problems
Skin color: Always follow the natural law of "multiplying and then averaging", leaving people with no choice. If the parents have darker skin, there will never be children with white and tender skin; if one side is white and the other is black, most of them will give their children a "neutral" skin color, and there are also cases that are more party-oriented.
Eye shape: The shape and size of a child's eyes are inherited from their parents, and the large eyes are dominantly inherited relative to the small eyes. If one of the parents has big eyes, the possibility of having a child with big eyes will be larger.
Double eyelids: Double eyelids are dominantly inherited, and babies with single eyelids and double eyelids are most likely double eyelids. But parents are single eyelids, and generally children are single eyelids.
Eyeball color: Dark colors such as black are dominantly inherited relative to light colors. That is to say, people with black and blue eyes will not have children with blue eyes.
Eyelashes: Long eyelashes are also dominantly inherited. As long as one parent has long eyelashes, the possibility of a child inheriting long eyelashes is very large.
Nose: Generally speaking, the nose is large and high, and the nostrils are wide and dominantly inherited. One of the parents has a straight nose bridge, and it is very likely that it will be passed on to the child. The genetics of the nose continue into adulthood, and when you are a child, you have a short nose and an adult may become a tall nose.
Ears: The shape of the ears is inherited, and the large ears are dominantly inherited relative to the small ears. As long as one of the parents has big ears, then the child is most likely to have a pair of big ears.
Jaw: Is a dominant inheritance that is not "negotiable". Either parent has a prominent large chin, and the children often have a similar chin without exception, which is "like" a little bizarre.
Obesity: It will give children a 53% chance of becoming a big fat person, and if one of the parents is obese, the probability of the child being obese drops to 40%. This shows that about half of the fat and not fat can be determined by human factors, so parents can make their posture even through a reasonable diet and full exercise.
Baldness: The Creator seems to favor women, allowing baldness to pass only to men. For example, if the father is bald, there is a 50% probability of passing it on to his son, and even the father of the mother will leave 25% of his baldness to his grandchildren.
Acne: This facial disease that makes young boys and girls angry is actually related to heredity. Because if both parents have suffered from acne, the prevalence of their children will be 20 times higher than those without family history.
Leg shape: A leg that resembles the fat accumulation of parents, and can be shaped into a slender and strong leg through adequate exercise. But if those legs appear too long or too short due to genetics, they can only resign themselves to nature.