Which genes in a couple determine the IQ and appearance of a child?

I heard that the mother's intelligence is easier to pass on to the baby boy, the higher the IQ of the mother, the smarter the baby boy will be! However, I prefer to believe that the acquired effort is important to love everything. Appearance, I think each accounts for half, it is said that they are all inherited from the best one in their parents!

The child's IQ and appearance are actually inherited by both parents, but the probability of inheritance is not necessarily, and the child's IQ and appearance will also change later.

My blood type is the same as my dad's. Both his appearance and IQ are similar to him, and his voice is very similar.

The boy is xy, so the boy's intelligence inheritance is completely **** the mother, and the girl is xx, so the girl's intelligence inheritance is half of the influence of the parents. ‍‍

<>So I think that physiognomy accounts for a little bit, and IQ is that the inheritance of the father is greater than the inheritance of the mother.

According to biologists, all eight pairs of genes that determine IQ are located on the X chromosome. If you give birth to a male baby, the sex chromosome is XY, in which the X chromosome is all from the mother, so the IQ of the male baby is all affected by the mother. The sex chromosomes of the female treasure are xx, and the two x chromosomes come from the father and mother respectively, so the IQ of the female treasure is affected by both parents.

So, if a boy is smart, then his mother must be smart too. ‍‍

I often hear people say that children are like baba, or they are like hemp, and the image here is the degree of influence of physiognomy. There are many contrasts in appearance, such as eyes, nose, and so on. For the eyes, the child's eye size and eye shape are inherited by the parents, and the big eyes are dominantly inherited from the small eyes, so the blank space can be discussed with the baby The big eyes are also because the father is also big eyes.

Double eyelids and long eyelashes are also dominantly inherited, and babies with one parent generally have both. For the nose, the size and height of the nose and the width of the nostrils are inherited dominantly, and are inherited by the high bridge of the nose of the parents. ‍‍

I believe that a child's appearance, genes, external environment, parenting conditions, diseases, and so on all have an impact. Let's not care about too many complex changes, pretend that everyone lives in the same latitude, there is no disease, and nutrition is guaranteed, these conditions are the same, and the appearance of the child can be analyzed specifically. Let's talk about IQ.

Knocking on the blackboard, heredity is only one of the influencing factors, how much it is decisive and how it works, these are not necessarily. ‍‍

There is a theory that a child's IQ is inherited from the mother, because the X chromosome determines the IQ, and the mother has two X chromosomes, so the probability of inheriting the IQ is high. But this argument is untenable, because even if the X chromosome determines IQ, the boy inherits the IQ of his mother, and second, the mother's X chromosome also comes from her father. There is also a theory that the father's IQ is even more difficult to determine because it is inactivated in the genetic process.

In general, in terms of IQ, it is not clear who the child is with. IQ is more influenced by education, intellectual development, and other environmental factors, and intelligence tests are inherently unreliable. ‍‍

If you want to judge whether a boy is smart or not, just look at his mother. Mothers have 3 times more influence on their children's IQ than fathers! So, if you're a guy and you think you're stupid.

You must marry a smart girl. In this way, the chance of your child turning the tables is still 70% 5, and life is still full of hope. If you're a girl, and then you think you're stupid...Ah, what, the stupid bird flies first, no.

When you see a boy who is very smart, then the probability 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%. So, if you're thinking about marrying a very smart guy, you have to be careful of his mother, who may be a very calculating mother-in-law. ‍‍

There are many questions about whose genes determine a child's IQ and appearance, but in fact, there is no very authoritative data and very accurate answers. There is a perception that the IQ of a son is more with his mother, and the IQ of a daughter is half that of his father and mother. I have used this statement to test some people around me, and I have found that there is indeed some truth to it.

There are a lot of people who fit this statement. But on the other hand, it's certainly not absolutely accurate either. For example, if there are two daughters or two sons in a family.

Most of the time, the IQ of the two children is not the same. Even twins, there will be differences. ‍‍

Physiognomy is mainly the role of dominant genes and recessive genes. Dominant genes and recessive genes generally exist at the same time, and the genes that can show traits are dominant genes, and those that cannot be expressed are recessive genes. Assuming that the dominant gene is AA and the recessive gene is AA, then the gene combination they form is usually AA, AA, AA, AA.

Double eyelids are the dominant gene, and single eyelids are recessive genes. If one parent has a dominant gene, the child is more likely to exhibit a dominant trait. From this, we can also see that if both parents have double eyelids, the child may also have single eyelids.

Because both parents are AA combinations, then the child may be AA, so the child may also have a single eyelid. ‍‍