The ancient representative of the elder brother and the cousin got married, and the children born were normal. In fact, it shows that their blood relationship is not particularly close, and the ancient wives and concubines are in groups, which makes the common genes less and reduces the probability. Next, I will talk about why the children born from the marriage of the ancient representative brothers and sisters are normal from the following aspects.
The first aspect is that in addition to marrying wives, ancient people also had concubines. In ancient times, unlike today's monogamy, a husband may have several wives and concubines, and in the eyes of outsiders, whether these children are direct relatives or concubines, they are brothers and sisters, but their mothers are not related by blood. There are also concubines who remarried with children, which are even more unrelated by blood.
The second aspect is that the ancients had many descendants, and the ancients emphasized spreading branches and leaves. Under the influence of these traditional thoughts, the descendants of the ancients are generally very large, so occasionally a few children with premature death or congenital defects will not be taken too seriously by everyone, and they may be treated as bad omen when they are born.
The third aspect is that they should be related to each other when they get married, but they are not related by blood. For example, the two madams come from different parents' homes. If the husband's and nephew are not related by blood, but find another girl from their parents to marry, although the two are related, they are not related by blood. relation. This can explain why the children born from the marriage with the distant cousin are normal.
In fact, from a scientific point of view, genes are also divided into dominant gene and recessive gene . Not all diseases will show in when the first generation of consanguineous marriages, and there may be problems, but there has been no situation that manifests. In addition, the blood relationship is intricate and , which also reduces the probability.
