Heerlijke brunette. Aantrekkelijke medische werknemer verhogen van zijn linker hand en houden reageerbuis terwijl glimlach op zijn gezicht - Stockfoto’s en -afbeeldingen

Delightful experiment. Happy lab assistant keeping smile on his face holding test-tube in left hand while standing over lab background

Something strange. Very attentive practitioner keeping his mouth opened and holding test-tube with blue liquid while examining it

Facial expressions. Delighted male person sitting at his workplace, raising both hands while keeping mouth opened

Blue liquid. Positive delighted practitioner holding test glass with chemical agent in the left hand and keeping smile on his face while standing isolated on lab background

Chemical reagent. Positive cheerful ice man holding a test tube and looking at the liquid in it while doing chemical research

DNA research. Nice professional male doctor holding a blood sample and looking at it while working in the medical laboratory

Thoughtful researcher. Attentive bearded scientist wrinkling his forehead while looking at pink liquid

Rubber gloves. Positive scientist holding pipette in left hand and dropping reagent into test tube while looking at camera

Scientific innovations. Nice genius researches studying test samples while working together in the lab

Enjoy doing reseacrh. Positive experienced man dealing with bioengineering while working in a lab

Biological test sample. Selective focus of a test tube being held by a nice smart professional scientist while taking a biological test sample

Portrait of a virologist holding a pair of test tubes with reagents in his hands

Blood analysis. Concentrated female person raising hand while looking at test tube

Staring into microscope. Delighted woman expressing positivity while keeping smile on her face and looking into microscope