Generally, people only pay attention to the inheritance of appearance and say which aspects resemble their mother or father. In fact, inheritance is not that simple. In addition to the inheritance of appearance, parents also pass on many things to their children.
First of all, you must understand that a child is initially a fertilized egg composed of a sperm from the father and an egg from the mother. After many times of differentiation, it gradually develops into a fetus similar to the parents. This is the result of genetic engineering passed on from the parents to the fertilized egg. Therefore, the child\’s body height, body fatness, skin color, eye size, nose height, ear and tooth shape, hair thickness, intelligence, life span, blood pressure, blood type, and number of red blood cells , some diseases and resistance, etc., are all related to the genetics of the parents. Of course, heredity is one aspect, but acquired environment will also affect certain characteristics of heredity. For example, height, life span, body shape, and intelligence will still change under different conditions after birth.
If you eat well and exercise regularly, you may be taller than your parents; if you study hard and have rich knowledge, you may be smarter than your parents; on the other hand, if you live in a poor environment, you may be even worse than your parents. Therefore, heredity is only one aspect, and the acquired environment and conditions cannot be ignored. In other words, the genetic traits of parents are also affected by the environment. This is explained in more detail in the previous section.
The inheritance of diseases is an issue that we should pay special attention to. If the genetic tendency of parents’ genetic diseases can be discovered in time, the occurrence of genetic diseases in offspring can be reduced or reduced.
Blood types are regularly inherited between parents and offspring. But it can only be said to be a genetic trend, which means that the blood type of the parents determines what blood type the child may or may not have.
The relationship between parent blood type and child blood type is as follows:
Father\’s blood type Mother\’s blood type Possible blood types of children Impossible blood types of children
AAA, OB, AB
AOA, OB, AB
ABA, B, AB, O
Father\’s blood type Mother\’s blood type Possible blood type of child Possible blood type of child Impossible blood type
AABA, B, ABO
BBB, OA, AB
BABA, B, ABO
BOB, OA, AB
OOOA, B, AB
ABOA, BAB , O
ABABA, B, ABO
This article is provided by Baidu Reading and is excerpted from \”The First Three Months of Pregnancy – Pregnancy Preparation Period\” Author: Wang Liru