Ключевые слова: adenine, background, bio, biochemistry, biology, biotech, biotechnology, cell, chemistry, chromosome, clone, cytosine, dna, double, evolution, experiment, gene, genes, genetically, genetics, genome, guanine, health, helix, human, illustration, industry, life, medical, medicine, micro, microbiology, microscopic, molecular, molecule, pharmaceutical, pharmacy, research, rna, science, scientific, spiral, stem, strand, technology, test, thymine, virus,