DNA analysis. Pleased bearded male person keeping smile on his face while checking DNA - Stock Photo & Image

Take decision. Serious senior scientist wearing protective glasses while doing chemical experiment

Biological experiment. Cheerful senior man wearing glasses while doing chemical research

Experienced professor. Handsome scientist wrinkling his forehead while checking reagent before experiment

Senior chemist with pipette and test tubes in laboratory

Chemical expertise. Attentive mature scientist wrinkling his forehead while looking at test tube

Need to take decision. Confident bearded man pressing lips and being very serious while working with microscope

Chemical expertise. Competent medical worker expressing positivity while doing scientific research

Using microscope. Attentive bearded man expressing positivity while working in laboratory and looking forward

Let me see. Confident male scientist sitting at a microscope and looking at a set of test tubes with different liquids while working in a lab.

Shake it. Delighted practitioner keeping mouth opened and raising both hands while doing reagent exam

Professional research. Selective focus of laboratory equipment being used for doing a professional research

Competent scientist. Confident practitioner looking attentively at pipette while adding some drops of reagent while waiting for reaction

Daily routine. Waist up shot of a male lab worker looking into the camera while browsing his laptop and looking at samples under a microscope.

Close up of test tubed in a lab while professional scientist working in microbiology project

Comparing two samples. Happy smiling medical workers holding test tubes and wearing uniforms and medical gloves and glasses while sitting the lab and another scientist working in the background