DNA Features

[DNA Features

A. DNA from the monomer polymerization deoxynucleotidyl from the polymer.
B. DNA monomer called deoxynucleotidyl, each deoxynucleotidyl composed of three parts: part of the five members of nitrogen bases + carbon sugar (deoxyribose) + member phosphate, DNA by C, H, O, N, P composed of five elements.
C. DNA nitrogen base can be divided into four categories: guanine (Guanine), thymine (Thymine), adenine (Adenine), cytosine (Cytosine)
D. DNA sequence of the four kinds of nitrogen species specificity. That the ratio of four nitrogen-containing bases in the same species, different individuals is the same, but in different species there are differences.
E. DNA ratio of four nitrogen-containing bases with unusual regularity, and each organism DNA of A (adenine deoxynucleotidyl) = T (thymine deoxynucleotidyl) C (cytosine deoxy Nucleotide) = G (guanine deoxynucleotidyl). A and T hydrogen bonds between the two linked, C and G to three hydrogen bonds between connected.