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    Cell cultures under microscope in laboratory. — Stock Photo
    Cell cultures under microscope in laboratory.
    Close-up of light microscope stage and lenses. — Stock Photo
    Close-up of light microscope stage and lenses.
    Pipette placing sample into test tube during experiment in laboratory. — Stock Photo
    Pipette placing sample into test tube during experiment in laboratory.
    Close-up of pipette pipetting into test tubes in pathogenic laboratory. — Stock Photo
    Close-up of pipette pipetting into test tubes in pathogenic laboratory.
    Microscope and piles on Petri dishes in laboratory on blue background. — Stock Photo
    Microscope and piles on Petri dishes in laboratory on blue background.
    Pipette adding sample to petri dish with DNA autoradiogram in background. — Stock Photo
    Pipette adding sample to petri dish with DNA autoradiogram in background.
    Scientist posing in protective costume in laboratory — Stock Photo
    Scientist posing in protective costume in laboratory
    Scientist in protective wear pouring liquid in steaming flask — Stock Photo
    Scientist in protective wear pouring liquid in steaming flask
    Multiwell plate with biological samples on white background. — Stock Photo
    Multiwell plate with biological samples on white background.
    Pattern of cultures growing in Petri dishes on plain background. — Stock Photo
    Pattern of cultures growing in Petri dishes on plain background.
    Plant sprouts in Petri dish under light microscope. — Stock Photo
    Plant sprouts in Petri dish under light microscope.
    Overhead view of pipettes in Pipetting plate in laboratory — Stock Photo
    Overhead view of pipettes in Pipetting plate in laboratory
    Female scientist examining cultures in petri dish. — Stock Photo
    Female scientist examining cultures in petri dish.
    Stacks of Petri dishes with cultured agar on plain background. — Stock Photo
    Stacks of Petri dishes with cultured agar on plain background.
    Racks of food samples in test tubes. — Stock Photo
    Racks of food samples in test tubes.
    Buccal swabs for obtaining deoxyribonucleic acid samples. — Stock Photo
    Buccal swabs for obtaining deoxyribonucleic acid samples.
    Multichannel pipette and blue well plate in laboratory. — Stock Photo
    Multichannel pipette and blue well plate in laboratory.
    Light microscope in laboratory, close-up. — Stock Photo
    Light microscope in laboratory, close-up.
    Green seedling in glass Petri dish on table. — Stock Photo
    Green seedling in glass Petri dish on table.
    Scientist holding tomato piece with tweezers for food research. — Stock Photo
    Scientist holding tomato piece with tweezers for food research.
    Close-up of hand using multipipette for placing DNA onto agarose gel. — Stock Photo
    Close-up of hand using multipipette for placing DNA onto agarose gel.
    Female scientist holding petri dish with hazardous biological cultures. — Stock Photo
    Female scientist holding petri dish with hazardous biological cultures.
    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Close-up of rack of cell cultures in bottles in laboratory. — Stock Photo
    Close-up of rack of cell cultures in bottles in laboratory.
    Close-up of scientist hand holding Petri dish in pathology laboratory. — Stock Photo
    Close-up of scientist hand holding Petri dish in pathology laboratory.
    Test tubes with red liquid in rack. — Stock Photo
    Test tubes with red liquid in rack.
    Stacked agar plates on plain background. — Stock Photo
    Stacked agar plates on plain background.
    Close-up of pipette pipetting into test tubes in pathogenic laboratory. — Stock Photo
    Close-up of pipette pipetting into test tubes in pathogenic laboratory.
    Rack of test tubes with blood samples on blue background. — Stock Photo
    Rack of test tubes with blood samples on blue background.
    Stacked Petri dishes with blood agar on plain background. — Stock Photo
    Stacked Petri dishes with blood agar on plain background.
    Rack of test tubes with blood samples in laboratory. — Stock Photo
    Rack of test tubes with blood samples in laboratory.
    Close-up of pipetting liquid into Eppendorf tubes. — Stock Photo
    Close-up of pipetting liquid into Eppendorf tubes.
    Close-up of light microscope stage and lenses. — Stock Photo
    Close-up of light microscope stage and lenses.
    Microscope in laboratory on blue background. — Stock Photo
    Microscope in laboratory on blue background.
    Close-up of technician repairing circuit board in electronics laboratory. — Stock Photo
    Close-up of technician repairing circuit board in electronics laboratory.
    Close-up of pipetting liquid into Eppendorf tubes. — Stock Photo
    Close-up of pipetting liquid into Eppendorf tubes.
    Close-up of sample on red liquid in centrifuge tube. — Stock Photo
    Close-up of sample on red liquid in centrifuge tube.
    Tubes for biological test in rack on blue background. — Stock Photo
    Tubes for biological test in rack on blue background.
    Close-up of laboratory technician writing on test tube. — Stock Photo
    Close-up of laboratory technician writing on test tube.
    Close-up of microtubes with red liquid. — Stock Photo
    Close-up of microtubes with red liquid.
    Buccal swabs for obtaining deoxyribonucleic acid samples. — Stock Photo
    Buccal swabs for obtaining deoxyribonucleic acid samples.
    Female scientist examining DNA autoradiogram. — Stock Photo
    Female scientist examining DNA autoradiogram.
    Cell culture plate on white background. — Stock Photo
    Cell culture plate on white background.
    Light microscope on laboratory bench. — Stock Photo
    Light microscope on laboratory bench.
    Forensic scientist taking swab from blood-stained shirt as forensic evidence. — Stock Photo
    Forensic scientist taking swab from blood-stained shirt as forensic evidence.
    Cropped view of scientist hands pipetting sample for biological research. — Stock Photo
    Cropped view of scientist hands pipetting sample for biological research.
    Light microscope on laboratory bench. — Stock Photo
    Light microscope on laboratory bench.
    Close-up of laboratory technician holding tube with blood sample in gloved hand. — Stock Photo
    Close-up of laboratory technician holding tube with blood sample in gloved hand.
    Blood sample in test tube in hand of scientist. — Stock Photo
    Blood sample in test tube in hand of scientist.
    Close-up of electronic pipette in gloved hands. — Stock Photo
    Close-up of electronic pipette in gloved hands.
    Gloved hand picking up sheet of agarose gel. — Stock Photo
    Gloved hand picking up sheet of agarose gel.
    Close-up of slide on light microscope stage. — Stock Photo
    Close-up of slide on light microscope stage.
    Athlete in oxygen mask riding exercise bike with measuring of oxygen consumption. — Stock Photo
    Athlete in oxygen mask riding exercise bike with measuring of oxygen consumption.
    Close-up of Eppendorf tubes in rack. — Stock Photo
    Close-up of Eppendorf tubes in rack.
    Pipette adding sample to petri dish during experiment in laboratory. — Stock Photo
    Pipette adding sample to petri dish during experiment in laboratory.
    Male scientist in face mask holding syringe. — Stock Photo
    Male scientist in face mask holding syringe.
    Close-up of cell culture plates on white background. — Stock Photo
    Close-up of cell culture plates on white background.
    Female laboratory worker filling vials with pipette, close-up. — Stock Photo
    Female laboratory worker filling vials with pipette, close-up.
    Pipette adding sample to petri dish with DNA autoradiogram in background. — Stock Photo
    Pipette adding sample to petri dish with DNA autoradiogram in background.
    Pipette placing sample into test tube during experiment in laboratory. — Stock Photo
    Pipette placing sample into test tube during experiment in laboratory.