研究室で働くアフリカ系アメリカ人の医師。薬学実験を行う科学アシスタント。実験室用具:顕微鏡、試験管、装置。化学、医学、生化学 - ストックフォト＆画像

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

African-american Medical doctor working in research lab. Science assistant making pharmaceutical experiments. Laboratory tools: microscope, test tubes, equipment. Chemistry, medicine, biochemistry

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

Scientist working in lab. Asian doctor making medical research. Laboratory tools: microscope, test tubes, equipment. Biotechnology, chemistry, science, experiments and healthcare concept. Day light

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

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

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

Scientist working in lab. Asian doctor making medical research. Laboratory tools: microscope, test tubes, equipment. Biotechnology, chemistry, science, experiments and healthcare concept. Day light

Scientist working in lab. Doctor making microbiology research. Laboratory tools: microscope, test tubes, equipment. Biotechnology, chemistry, bacteriology, virology, dna and health care concept.

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