Question

Describe the structure of DNA

Answer 1

The DNA molecule is a polymer of nucleotides. Each nucleotide is composed of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group. There are four nitrogenous bases in DNA, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine). A DNA molecule is composed of two strands.

Step-by-step explanation:

Answer 2

It is shaped as a double helix. There are two strands that are connected and twisted.