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DNA sample being pipetted into multi well plate with DNA gel below

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Scientist pipetting samples into eppendorf tubes for testing during an experiment in the laboratory

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Pipette on multi well plate awaiting DNA samples during a genetic experiment in the laboratory with the DNA profile results in the background

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Pipetting droplets of liquid into eppendorf tubes, side view

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Pipette adding sample to petri dish with DNA profiles in background

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Scientist pipetting stem cell cultures into tray for pharmaceutical research

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Overhead view of pipetting DNA sample into microcentrifuge tubes

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Pharmacist Talking to Mother With Baby

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Close up of 96-well microtiter plate with crystal violet solution to examine toxicity

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Scientist pipetting sample into multi well tray for analytical testing in laboratory

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Attractive student holding big pipette in lab at college

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A graduated pipette being inserted into test tube

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Pharmacist Talking to Mother With Baby

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Pipetting coloured liquid into petri dishes

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Scientist pipetting sample into petri dish in laboratory

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Scientist pipetting sample into petri dish in laboratory

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DNA sample being pipetted into petri dish with DNA gel in background

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High school laboratory

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DNA sample in multi well plate with DNA gel below

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Pipette transferring green colour solution into petri dish

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Scientist pipetting DNA sample into vial in lab

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Researcher pipetting DNA sample into eppendorf vial in laboratory

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Group of scientists at work in laboratory, Cell culture suspension (front), which is later used for western blot technique (back) to see which proteins are pathologically expressed

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Pipette dripping liquid into test tube

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Weighting scale with beakers, computer and cogwheels

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Scientist using multi-channel pipette to fill multiwell plate for analysis of antibodies by ELISA assay, Jenner Institute, Oxford University

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Close up of pipetting experimental chemical into laboratory seedling tray

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Female scientist pipetting sample into volumetric flask

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Cool brewer checking his produce at the local brewery

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Scientist pipetting liquid in test tube

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DNA sample being pipetted onto human fingerprint and DNA gel to illustrate genetic engineering

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Senior scientist working at laboratory

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Pipetting experimental chemical onto seedling in laboratory

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Dr. Schüssler's cell salts pills with unguent,pipette and cotton-wool tip

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Several embryonic stem cells during nuclear transfer process used in therapeutic cloning for tissue replacement

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Teacher and students conducting scientific experiment

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Scientist using multi well pipette to fill multi well plate in biological safety cabinet in laboratory, Jenner Institute, Oxford University

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Close up of pipette in test tube

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Researcher pipetting DNA sample into eppendorf vial in laboratory

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Essential oil, dropper and almonds

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Petri dishes and pipette

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Pipetting: a dropper pipette is used to transfer a small amount of liquid to a test tube

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Sample in eppendorf vial during experiment in laboratory

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Scientist pipetting sample into eppendorf vial during experiment in laboratory

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Nuclear transfer, Stem cells made from the cell nucleus

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Scientist using multi-channel pipette to fill multiwell plate for analysis of antibodies by ELISA assay, Jenner Institute, Oxford University

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Male researcher using multi pipette in lab

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Scientist filling test tube with pipette in laboratory

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Scientist filling test tubes with pipette in laboratory

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Scientist dropping liquid into flask

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Scientists in clean suits working in laboratory

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Laboratory scientist adding a small amount of solid reagent to a container on a scale

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Pipette tips with liquid

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Male and female scientists working in lab

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