Científico afroamericano trabajando en el laboratorio. Doctor haciendo investigación microbiológica. Herramientas de laboratorio: microscopio, tubos de ensayo, equipo. Biotecnología, química, bacteriología, virología, ADN y salud - Metraje y vídeo de stock

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

Biochemist looking at plant in test tube

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. Male doctor making microbiology research. Laboratory tools: microscope, test tubes, equipment. Biotechnology, chemistry, bacteriology, virology, dna and

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

Archaeologist working in natural research lab. Laboratory assistant cleaning animal bones. Archaeology, zoology, paleontology and life science concept.

Scientist and students working in lab. Doctor teaching interns to make analyzing research. Laboratory tools: microscope, test tubes, equipment. Biotechnology, chemistry, bacteriology, virology, dna

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