I ordered the Ancestry.com DNA test in July. I got my results back last week (it took about 3 weeks to get the results back). The results showed West African 44%, British Isles 29%, Scandinavia 12%, Finnish-Volga/Ural 11%, and uncertain 4%. was certain that Ancestry had mixed up my sample with another. Then 4 months after receiving my âincorrectâ DNA results from Ancestry.com, my 86 year old mother revealed that my biological father was in fact a long time family friend and not the father who raised me. My own mother confirmed the DNA test results.
In genetics, complementary DNA (cDNA) is double-stranded DNA synthesized from a messenger RNA (mRNA) template in a reaction catalysed by the enzyme reverse transcriptase. cDNA is often used to clone eukaryotic genes in prokaryotes.
DNA Structure. Â­DNA is oÂ­ne of the nucleic acids, information-containing molecules in the cell (ribonucleic acid, or RNA, is the other nucleic acid). DNA is found in the nucleus of every human cell.(See the sidebar at the bottom of the page for more about RNA and different types of cells).he base pairs in DNA are adenine with thymine and cytosine with guanine. DNA has a spiral staircase-like structure. The steps are formed by the nitrogen bases of the nucleotides where adenine pairs with thymine and cytosine with guanine. Photo courtesy U.S. National Library of Medicine.