scientist conducts experiments adjusts specimen petri dish and looking into microscope |
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navigate by keyword : microbiology biotechnology dna transparent medical microorganism biology darkhaired man laboratory microscope analyze scientist examine chemistry research busy science occupation indoors experimental virology eyeglasses investigation success petridish sterile bearded involved testing modification working doctor contented |
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Dark haired scientist conducts experiments, adjusts specimen in petri dish and looking on it into microscope, researching in modern laboratory. |
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