DNA molecule. Computer illustration of a double stranded DNA (deoxyribonucleic acid) molecule. DNA is composed of two strands twisted into a double helix. Each strand consists of a sugar-phosphate backbone attached to nucleotide bases. There are four bases: adenine, cytosine, guanine and thymine, which are joined together by hydrogen bonds. DNA contains sections called genes that encode the body's genetic information.
June 29th, 2016
Viewed 777 Times - Last Visitor from Wilmington, DE on 11/27/2023 at 9:24 AM