Αφροαμερικανός επιστήμονας που δουλεύει στο εργαστήριο. Αρσενικός γιατρός που κάνει μικροβιολογική έρευνα. Εργαστηριακά εργαλεία: μικροσκόπιο, δοκιμαστικοί σωλήνες, εξοπλισμός. Βιοτεχνολογία, χημεία, βακτηριολογία, ιολογία, DNA και - Πλάνα & Βίντεο Αρχείου

African-american scientist working in lab. Doctor making microbiology research. Laboratory tools: microscope, test tubes, equipment. Biotechnology, chemistry, bacteriology, virology, dna and health

African-american scientist working in lab. Male doctor making microbiology research. Laboratory tools: microscope, test tubes, equipment. Biotechnology, chemistry, bacteriology, virology, dna and

African-american scientist working in lab. Doctor making microbiology research. Laboratory tools: microscope, test tubes, equipment. Biotechnology, chemistry, bacteriology, virology, dna and health

African-american scientist working in lab. Male doctor making microbiology research. Laboratory tools: microscope, test tubes, equipment. Biotechnology, chemistry, bacteriology, virology, dna and

African-american scientist working in lab. Doctor making microbiology research. Laboratory tools: microscope, test tubes, equipment. Biotechnology, chemistry, bacteriology, virology, dna and health

Scientists in protection suits and masks working in research lab using laboratory equipment: microscopes, test tubes. Biological hazard, pharmaceutical discovery, bacteriology and virology concept.

African-american scientist working in lab. Doctor making microbiology research. Laboratory tools: microscope, test tubes, equipment. Biotechnology, chemistry, bacteriology, virology, dna and health