How to know from whom conceived a child

Researchers have long published information about the fact that not every father brings his family own child. And did not even realize. Also there are often situations when a man wants to find out whether he is the father, to know he needs to pay child support or not.

Instruction

1. Of course, the most accurate way to know from whom conceived the child, is the DNA-examination. It can hold as doubting the child's father to know whether it is the child and the alleged father, who will indicate the mother of the baby. If there is such a situation that it is necessary to determine which of two men is the biological father of the child, it will only DNA analysis. He will answer with an accuracy of 99.9%. The 0.1% is always left for error.
   
2. Alternatively, you can try to determine from whom conceived a child by blood his and the alleged father. You need to use special tables comparing blood groups and check. However, this method is not reliable because the blood group of a child effect the mother's blood. Besides, this method works well if the child is a rare group and get such from the compatibility of his official parents, she could not. And such a result, it is best to confirm data for more accurate analyses.
   
3. Alternatively, you can define from whom was born the child in the case that manifested genetic disease that in families the mother and father were noted. There are a number of such diseases that are transmitted from father to child. Them and can try to figure out who the real father is.
   
4. You can also try to determine from whom is born the baby indirectly. For example, according to what he looks like. As a rule, children at birth - just the spitting image of his father. They say that nature has provided so specifically to exclude the father doubts that he is the father. But this method has two main disadvantages. First, people tend to exaggerate the similarity between parent and child and know how to seek out similar traits where there are none. Second, in some cases, children are born like her mother as two drops of water.
   
5. Another way is try to calculate the potential father on the menstrual cycle of the mother. But you need to know exactly at what point the woman was ovulating, which days of the cycle she had sexual intercourse with many men and the movement speed of sperm. On national signs, if the mother had sex with men at one and the same time, you can try to determine from them father Paul child. As the boys ' sperm chromosomes are faster but less hardy, if you have a son, his father's second man, with whom the mother spent the night. However, this method is very unreliable. And, like all the rest, better to double-check the official testing.