Question

explain the structure of DNA​

Answer 1

Answer:

Explanation:

DNA- Deoxyribonucleic acid is made up of the nucleotides. DNA has a structure of double helix it has two strands that wind around each other and look like a twisted ladder and each strand is made up of sugar and phosphate groups.

hope this helps

Answer 2

Answer:

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code. Human DNA has around 3 billion bases, and more than 99 percent of those bases are the same in all people, according to the U.S. National Library of Medicine (NLM).