background biochemistry biology biotechnology chemistry chromosome clone cloning deoxyribonucleic dna double education gene genetics helix illustration lab life medical medicine microscopic molecular molecule organic pharmacy research ribonucleic science scientific spiral stem strand symbol technologies technology test therapy acid adenine cell cytosine evolution guanine health human pharmaceutical thymine white blue dark concept 3D alien brain close-up cluster cooking decay dish experiment experimental food fungi fungus grow hypha investigation laboratory macro matter microbiology microorganisms microscope mold mould mushroom mycelia mycelium nature pattern penicillin porous residue rot rotten Slime spores structure study substance wallpaper yeast