The DNA abbreviation stands for deoxyribonucleic acid and is defined as a nucleic acid that contains the genetic code.
How can AFI help you with DNA?
AFI can collect, secure, maintain chain of custody and transport DNA anywhere in the United States. To assist with criminal, civil, insurance and inheritance cases.
What types of DNA are there?
Y-line DNA – tests the Y chromosome which is passed from father to son, along, in most cases, with the surname.
Mitochondrial DNA – is passed from mothers to both genders of her children, but only passed on by females. Males carry their mother’s mitochondrial DNA (mtDNA) but they don’t pass it on.
Autosomal DNA – tests the rest of the DNA provided by both parents on the 23 chromosomes, not just two direct lines, as with Y-line and mitochondrial DNA. Older tests of this type tested between 21 and about 300 markers, but current generation testing provided by Family Tree DNA
The X Chromosome – has special inheritance properties that allow people to use these results separately from the rest of the autosomal results, although the X chromosome is a part of the 23 sets of chromosomes used for autosomal testing.