Laboratory, Scientist, Science, Microscope, Research, Biotechnology, Chemical, Working, Chemistry, Scientific Experiment, Occupation, People, Biology, Men, Scrutiny, Chemist, Equipment, Male, Liquid, Group Of People, Expertise, White, Women, Beaker, Mask, Biochemistry, Biochemist, Flask, Female, Horizontal, Protective Glove, Microbiology, Holding, Biologist, Caucasian, Discovery
