Shi Kai said: "I said Brother Zhang, although what you said is not unreasonable, what does it have to do with us?" ”

"Of course, it has a relationship, you are all outstanding talents, your genes have a very large impact on the baby, according to statistics, the influence of parents' genes on the baby's personality accounts for 50%, therefore, so to speak, the character of the parents determines the child's character, especially the first 3 years after the baby is born, the most important, the so-called "three-year-old old" is this truth. Zhang Zheng explained.

"Oh my mother? Does the genetics and behavior of parents have such a big impact on the baby? Shi Kai and others said.

"Isn't it? This is only the impact on the baby's personality, other influences, such as intelligence, are even greater. Zhang Zheng said.

"Oh, then Brother Zhang will continue to popularize the relationship between eugenics and intelligence for us." Shi Kai said.

"There are many factors that determine intelligence, including the environment, nutrition, and education in addition to genetics. But from a genetic point of view, the influence of genes on intelligence accounts for about 60%. Especially for smart pregnant mothers, if they give birth to a male baby, most of them are like mothers, that is, they are mainly influenced by their mothers. If you have a girl, it is more influenced by both parents. Zhang Zheng explained.

"Ahh No wonder they all say that boys are like mothers? Does it make any sense? They asked.

"In terms of genetics, scientists have found that the genes related to intelligence are mainly concentrated on chromosomes, with expectant mothers having two X chromosomes and expectant fathers having one X and one Y chromosome. Therefore, the chromosome of the baby boy is Xy, and this X chromosome comes from the mother, that is, the mother decides whether he is smart or not. The chromosomes of the baby girl are xx and x chromosomes from both parents, so intelligence will be affected by both parents. Zhang Zheng further explained.

"Wow! Does the mother have such a great influence on the baby's intelligence? So my baby must be very smart? Yu Li said with a smile.

"Of course, Lily is so clever, she must be very smart to give birth to a baby in the future, but, according to Brother Zhang, whether the baby is smart or not, the man's factor is also related, if you find a fool to be your husband in the future, the child born may also be two hundred and five. Ha! Shang Xiaomei smiled.

"You're just looking for a fool to be your husband, but I said that I want to have a relationship with Brother Zhang, if the relationship is successful, he will be my husband, I combine with a superb husband like Brother Zhang, and the doll born must be as smart as a monkey." Yu Li said with a smile.

"Ahh I said Lily, our children can't be like monkeys, haven't you heard, when you describe people as ugly, do you say that he is a monkey with a sharp beak? Zhang Zheng said with a smile.

"Oh, I've heard of it, I'm talking about the baby's intelligence like a monkey, didn't I say that the appearance is the same as a monkey." Yu Li explained.

"The cleverness of monkeys has nothing to do with intelligence, compared to human intelligence, monkeys are much more mentally retarded." Zhang Zheng said.

"Oh, then the two of us are still like human beings." Yu Li said.

"Isn't this nonsense? What do you mean by being human? It's human, and it must be a beautiful man like me or a little beauty like you. Zhang Zheng said with a smile.

"Brother Zhang, according to what you said, the baby's appearance should also be related to the genetics of the parents?" Yu Li asked.

"Of course it has a relationship, and it has a big relationship. Of course, the genetics of the baby's appearance cannot be generalized, because different appearances have different genetic laws. Zhang Zheng said.

"I'm most concerned about the baby's appearance, I don't want my baby to have a sharp beak monkey gills, Brother Zhang, let's talk about the relationship between genetics and appearance." Yu Li said.

"Let's start with skin tones. The heredity of skin color is very fair, it follows the natural law of "multiply and then average", so that people have no choice. If the parents have dark skin, there will never be children with fair skin; If one has white skin and one has dark skin, most babies will have a "neutral" skin tone, but there will be accidents and may be biased towards one or the other. Zhang Zheng explained.

"Our sisters' skin is very delicate and white, and the children born in the future should have good skin, right?" Shi Kai asked.

"That maybe, there is absolutely no problem with your skin, but it depends on the man's skin, of course, if you combine with your brother, of course there will be no problem with the baby born." Zhang Zheng said with a smile.

"I said Brother Zhang, your appetite is too big, right? There are so many of us, there are more than a dozen, can you eat it? Shi Kai said with a smile.

"Generally average, my brother's appetite is the third in the world, just a dozen of you beautiful girls, of course my brother is not a problem." Zhang Zheng said.

"Ahh I said brother, you are the third, what about the first and second? Shang Xiaomei asked.