Biological basis of parental lineage (not for women)

This article is not an academic paper, and I do not have any idea of discrimination against women. The following discussion is purely confused and never go online.

In today's society, there is a very serious parent lineage. Most of the children follow the parent's surname, and most of the families continue with the parent, while the female is secondary. this is an indisputable fact. why does this happen? social development is the main factor. but it also has its biological basis.

Each person has two sex colored bodies. This is a very important pair of human chromosomes, which come from the father and mother respectively,
XY is male, X is from Mother, Y is from Father,
XX is a female, X is a mother, and X is a father,

That is to say, for a male, his Y chromosome must come from his biological father, and this Y chromosome will be inherited from his biological son. If he has a son, if you are a male, your Y chromosome must be exactly the same as your father's Y chromosome in biology, and this Y chromosome is also the same as your grandfather's, grandfather's, * The ancestor is exactly the same. of course, it is exactly the same as your son's, Sun Tzu's, Xuan Sun's, and Sun's. the traits bound to the Y chromosome (including genetic diseases of course) can continue for generations without confusion. in this way, the so-called pure lineage is guaranteed. for example, in my family, there is a genetic trait called ear canal stenosis, which is bound to the Y chromosome, so all men with the same surname in our family have this trait.

Let's take a look at the maternal directory. This is a bit complicated. If you are a lady, your sex chromosome is XX. I marked one of them as red, and this X comes from your mother, another black X comes from your father, and your mother's chromosome is XX. I use light green X and dark green X to represent them, respectively, that is to say, X may come from X or from X. Let's take a look at your mother's two X chromosomes, and X may come from your grandmother or your grandfather, similarly, X may come from your grandmother or your grandfather. That is to say, X may come from your grandmother or your grandfather, the problem arises. Your X chromosome does not necessarily come from your grandmother, and of course it does not necessarily come from your grandmother's mother. in this way, your X chromosome is lost in the ancestor. this cannot guarantee the purity of the so-called lineage.

These are the biological factors in which humans form the parent lineage. Perhaps our ancestors have noticed this point thousands of years ago. In a family, you will find that the three generations of grandparents are very similar, grandma and granddaughter have little length.
Of course, female should not be discriminated against because the parent lineage has its biological basis.

In my personal opinion, to form a parent lineage, there are at least two advantages for human development.
1. determine the responsibilities of male in the family and assign them the proper or greater responsibilities to male who do not play a major role in childbirth.
2. it has played a beneficial role in the study of human genetics. in particular, it provides a clear line of examination for the study of family genetic diseases. imagine if it is a maternal lineage, it will be very difficult to study genetics.

The above is my imagination about the so-called parental lineage. Maybe this is related to C # only providing single inheritance. Haha
This article has been reviewed by the author's wife