Methods for identifying biological relationships
With the continuous development of society, more and more people have doubts about their biological relationship. If you have such concerns, you may want to get a paternity test. The traditional paternity test method is to determine kinship through DNA testing, but this method is expensive and requires the assistance of a doctor. So are there other ways to determine biological relationship? Below we will introduce several methods of identifying biological relationships.
1. Face reading
Appearance inheritance is a very common inheritance method. Therefore, it is a very common method to judge kinship through facial appearance. The facial similarity between biological mothers and sons is relatively high, while the facial similarity between biological fathers and sons is relatively low. Kinship relationships can be preliminarily determined by observing the facial similarity between the biological father or mother and his or her children.
In addition to facial similarity, height, body shape, facial features, eyes, eyebrows, etc. are also heritable. Therefore, kinship relationships can also be initially judged by observing these characteristics.
2. Blood type method
Blood type is the specific type of protein a person\’s blood contains. It is said that people\’s blood types are different from each other, and blood types have certain genetic rules. Therefore, it is also a feasible method to judge kinship through blood types.
According to blood type theory, the father\’s blood type is 40% inherited from his father and 60% inherited from his mother; the mother\’s blood type is 50% inherited from the father and 50% from the mother. Therefore, there are certain rules for the blood type of parents and the blood type of children.
3. Genetic testing method
Genetic testing is a relatively common paternity testing method in recent years. It can determine biological relationships by testing the human genome. By comparing the DNA fragments of parent and child, it can be inferred whether the two are related.
The test accuracy of genetic testing method is very high, and the accuracy rate can reach more than 99.99%. This method requires the help of a doctor, sampling through oral mucosa, blood, etc., and then conducting genetic testing.
4. Family history investigation method
The family history investigation method is a relatively simple method that examines family history and family trees to check kinship relationships. Although this method is relatively simple, its accuracy is relatively low. The objects of investigation are often family members and relatives, and their basic information, health history and other relevant information need to be collected, and conclusions can be drawn only after cross-comparison of data from multiple parties.
Summary
The above introduces 4 methods to determine paternity: face reading, blood type, genetic testing, and family history investigation. These methods have their own advantages and disadvantages, and the appropriate method can be selected according to the actual situation. The blood group method and family history investigation method are relatively simple but less accurate methods, and are suitable for situations where the kinship relationship is relatively clear; while the face reading method and genetic testing method are more scientific and accurate methods, but require the help of professionals. and pay higher fees. For those who have doubts about kinship, choose a suitable parent-childIdentification methods can solve your doubts and make your life healthier and more stable.
