DNA or Deoxyribonucleic acid is a term used to refer to the genetic material in the cells of a human being. Every human being has a unique DNA pattern with the exception of identical twins. DNA testing refers to a method used to differentiate between individuals of the same species by using their DNA samples. DNA tests are carried out to check the presence or absence of a particular sequence of DNA. Recent advances in DNA testing have made the process extremely helpful in determining a person's ancestry.
Adopted individuals often wonder about their actual ancestry. They are curious about their ancestral heritage. Several people in the US wonder if they are Native Americans or Africans or Asians. All these queries regarding ancestry can be solved with the help of DNA testing. DNA research worldwide led to the discovery of genetic markers that are used to evaluate ancestry. These markers follow three types of inheritance pattern categories. These are autosomal DNA line, the paternal DNA line and maternal DNA line. The autosomal DNA line is made of all DNA in the cells excluding the X - chromosome, Y - chromosome and mtDNA. A person inherits half of autosomal DNA from the biological mother and the other half from the biological father. The Y chromosome markers are paternally related and passed from a father to his son. They are used to trace a person's paternal ancestry. Mitochondrial DNA or mtDNA are maternally related markers and are passed from a mother to her children. They are useful in tracing a person's maternal ancestry.
Various DNA companies provide home testing kits that can be used to collect the DNA sample at home and send them to a laboratory for analysis. DNA testing requires a few drops of blood or a cheek cells specimen collected by rubbing the inside of the mouth with a cotton swab. Some laboratories also use a mouthwash or chewing gum for analysis. The results are fast, reliable and confidential.
DNA Testing provides detailed information on DNA Testing, Paternity DNA Testing, Free DNA Testing, At Home DNA Testing and more. DNA Testing is affiliated with DNA Structures.
ไม่มีความคิดเห็น:
แสดงความคิดเห็น