Under the premise of nutritional status, the child’s height has 70% of the initiative in the hands of the parents, the parents’ genetics is the main factor in determining the child’s height, because 35% of the factors determining height from the father, 35% from the mother. If both parents are not high, then we have to rely on the 30% of the baby’s efforts. 1. Whose genetic inheritance is the most important factor in height? A: Half from each parent. 2. Whose genetic heritage is intelligence? A: Mom. Intelligence has a certain degree of heredity, and at the same time by the environment, nutrition, education and other acquired factors (the child’s appearance and intelligence of the law of inheritance). According to scientists’ assessment, the genetic influence on intelligence is about 50-60%, and as far as heredity is concerned, a mother who is smart gives birth to a child who is mostly smart, and even smarter if it is a boy. The reason for this is that human genes related to intelligence are mainly concentrated on the X chromosome. Women have 2 X chromosomes and men have only 1, so the mother’s intelligence takes a more important place in heredity. How do male and female babies come about? Boys are XY, the X (egg) comes from the mother and the Y (sperm) comes from the father. Girls are XX, X (egg) is from the mother and X (sperm) is from the father. So it’s all Mr.’s fault if you have a boy or a girl, don’t blame the mother’s belly. Please note: Boys are XY, so all of a boy’s IQ is inherited from his mother, and girls are XX, so a girl’s IQ is half from her father and half from her mother. Because girls’ IQs are influenced by both their mothers and fathers, there is a neutralizing effect. So the distribution of girls’ IQs will have a natural distribution, an inverted clock shape, with the center having the most influence and the sides having less. The boys’ IQ distribution is skewed towards the two extremes because they are completely influenced by only one side of the family. That is to say, there are more geniuses among boys, but at the same time, there are also more idiots among boys.