Info about Dna Testing
Genetic testing companies for you
Genes are some cells that transmit information about inheritable genetics that have children from their parents. Genes contain DNA a substance that helps to develop biological cells. Children have maternal inheritance 50% and 50% they have genes from their father. Genes are the genetic heritages that have children from their parents with different genetic features such as blood type, hair color, eye color, even the risk of certain diseases that have had their parents. For instance if a father of a child has had diabetes also child can at least 50% develop this disease because it means that the genes inherited from his father are responsible for triggering diabetes in his body. If genetic changes occur regarding the genes or chromosomes then malfunctions or mutations can appear in the body. So your health depends on the gene that you have inherited from your parents.
A person has about 46 chromosomes. Thus 23 chromosomes are inherited from father and the other 23 from mother. Chromosomes determine the sex of the child. Thus if during reproductive joined an X chromosome from mother and another X chromosome from the father then the mother will be born a girl. If one X chromosome is joined with a Y chromosome then it will be a boy. The Y chromosome is usually inherited from the father. Genetic testing uses DNA substance in order to check for genetic abnormalities in the chromosomes. DNA testing is done by harvesting blood, urine, semen, saliva, tissue, and bone or hair samples. In the U.S. there are companies doing genetic testing especially for pregnant women to avoid the birth of children with birth defects. Also genetic testing can tell if a child who is going to be born will inherit from his mother or father genes responsible for certain serious diseases they had before.
Some people from the U.S. government have said that genetic testing companies do DNA tests and their results are false. Even if results from a genetic company told their parents that children will be ill in some cases they didn't inherit any serious illness from their parents. Sometimes in the U.S. scandals occur often regarding DNA testing performed on genetic testing companies. In very few cases results of a DNA test done by a genetic testing company in the U.S. have proved to be real. Although are very expensive pregnant women make DNA tests during pregnancy. So they turn to genetic testing companies to find out if their child is likely to develop serious illness in the future.
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