Interview with paternity testing laboratory in Ji'nan, Shandong, Ji'nan, DNA
parent-child identification is to use the theories and techniques of medicine, biology and genetics to analyze the genetic features of the offspring and parents, analyze the genetic features and determine whether the parents and their daughters are related to their parents. Paternity testing has existed in ancient China, such as dropping bones to examine relatives, dropping blood to test relatives, etc. Although some people know the authority of DNA, they are full of doubts: why do two very similar people do not have parent-child relationship? What is the difference between the paternity test of DNA and the method of "blood letting relatives" in ancient China? The author interviewed the DNA paternity testing laboratory in Ji'nan, Shandong with questions. I learned that the Ji'nan paternity Laboratory (the website www.sddna.net) also set up a 400 free telephone 400-0607-007 for the public to provide advisory services to the public for the convenience of the consultants.
I interviewed Dr. Cao, head of paternity testing laboratory in Ji'nan and staff responsible for consultation.
question 1: we look like, how do we not have parent-child relationship?
this kind of doubt happens mostly to the relatives.
Mr. Wu (a pseudonym) is a family hunter. 20 years ago, for some reason, I gave my newborn child to others. Maybe he was guilty. Mr. Wu started a long road to find a family 5 years ago. A few months ago, in a family at the foot of a hill not far away from the year, a young man, whether from a look or a close age, was adopted by the young man. Mr. Wu looked at the young man as if he had found his own child. In order to be cautious, the Wu family decided to do paternity testing first.
Mr. Wu and the young man found the Ji'nan parent-child identification laboratory by telephone 400-0607-007, and collected samples at the Ji'nan DNA paternity sampling site. 5 days later, the results of the experiment came out, but 7 of them failed to match the 20 loci. Mr. Wu, holding the experimental report, was unable to be calm for a long time. He could not believe that a young man with a similar appearance had no blood relationship with him.
the staff of the Ji'nan paternity laboratory made a patient explanation of Mr. Wu, making him understand that the appearance cannot be used as a basis for judging whether it is a parent. Only the DNA paternity test is the most scientific method.
according to Ji'nan's paternity testing laboratory Dr. Cao, apart from real twins, each person's DNA is unique. Because of this, the most effective method for paternity testing is DNA paternity testing. The theoretical basis for DNA paternity testing to determine the genetic relationship is Mendel's segregation law. Therefore, a pair of alleles is one from the mother and one from the father, and the identification results do not exclude the relationship between parents and children if they conform to the law; if they do not conform, the relationship is excluded (except the variation).
Secret two: premature delivery, is the child mine?
Mr. Qin and his wife have been married for three years, and their wife has never been pregnant. Because Qin often travels on business, he has no time to go to the hospital for examination. Last year, his wife told Mr. Qin that he was pregnant, and that month, Mr. Qin had just a business trip, and the pre birth period was a few days apart from the time he calculated. When Mr. Qin was happy, he could not help wondering: was his wife "derailed"?
after the birth of the child, Mr. Qin found the Ji'nan paternity testing laboratory. To relieve his doubts, he took his wife's hair and took the baby, and came to the Ji'nan paternity test laboratory to identify whether his son was really his flesh. The workers collected the blood of Qin and the baby respectively, and extracted DNA from their wives' hair, and compared their DNA sequences.
5 days later, the staff of the Ji'nan paternity laboratory confirmed that the baby was the son of Mr. Qin, and that Mr. Qin felt ashamed to his wife. He said he would keep the secret to his family forever.
according to Mr. Yang, the head of the Ji'nan paternity laboratory consultation, some men do not understand the concept of "pregnancy time" and understand the time of pregnancy as the day of husband and wife's life, but the calculation of the time of pregnancy is to be calculated on the basis of the last menstruation, causing misunderstandings. Here, we remind readers that family is more important than everything. Please choose carefully.
about how to ensure the correctness of the results, Dr. Cao said that in order to make the results accurate, the Ji'nan paternity laboratory has strictly controlled the identification process and adopted two reexamination methods to ensure the accuracy of each result. For parties with paternity testing requirements, the author suggests that formal institutions should be selected for identification. (Wen / GUI long)