1,621 images pour mèche de cheveux

  • 6118-07354025

    Detail of ornamental grasses

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  • 6118-07354014

    Close up of ornamental grass clippings on white background

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  • 679-05992547

    Molécule d'ADN. Modèle moléculaire de l'ADN (acide désoxyribonucléique).

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  • 679-08228425

    DNA (Deoxyribonucleic acid) strand, computer artwork.

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  • 679-09184330

    Leukaemia, conceptual composite image. Scanning electron microscopy (SEM) and computer generated image (CGI) of DNA (deoxyribonucleic acid) molecules (helices) and red and white blood cells. Leukaemia is cancer of the white blood cells. Leukemias are caused by mutations in the DNA of blood cells. These genetic mutations change the way the blood cells reproduce and can also prevent them from funct

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  • 679-06672912

    DNA molecule, computer artwork.

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  • 679-06754689

    Woman's hair.

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  • 679-08518488

    Circular DNA (deoxyribonucleic acid) molecule, computer artwork.

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  • 614-08066080

    Portrait of young woman pulling on strand of curly hair

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  • 679-06672908

    DNA molecule, computer artwork.

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  • 822-05948864

    Adolescente aux cheveux sur le visage

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  • 649-07804812

    Static upright illuminated strands of fiber optic light

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  • 649-08237901

    Fibre optics flowing through circuit boards from a laptop computer, close-up

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  • 679-07763912

    Insulin, molecular model. Insulin plays an important role in blood sugar regulation. It is released from the pancreas when blood sugar levels are high, for example after a meal, prompting cells in the liver, muscle, and fat tissue to take up the glucose from the blood and store it as glycogen. Insufficient production of insulin leads to an accumulation of glucose in the blood causing diabetes.

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  • 649-08237898

    Internet network connector with fibre optics, close-up

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  • 6118-07354026

    Detail of ornamental grasses on white background

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  • 6118-07354013

    Close up of ornamental grass clippings on white background

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  • 679-05992550

    Molécule d'ADN. Modèle moléculaire de l'ADN (acide désoxyribonucléique).

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  • 822-06702403

    Portrait of Young Woman Outdoors

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  • 824-02888480

    Pâtes - séché spaghetti

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  • 649-08237892

    Strands of fibre optic used to send data, close-up

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  • 679-04249818

    Molécule d'ADN, oeuvre de l'ordinateur

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  • 822-07117317

    Smiling Young Woman on Beach

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  • 649-08237897

    Internet network connector with fibre optics, close-up

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  • 822-07117324

    Young Woman on Beach with Windswept Hair

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  • 649-08237899

    Internet network connector with fibre optics, close-up

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  • 649-08237900

    Fibre optics flowing through circuit boards from a laptop computer, close-up

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  • 649-08237902

    Fibre optics flowing through circuit boards from a laptop computer, close-up

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  • 679-06672910

    DNA molecule, computer artwork.

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  • 822-07117319

    Smiling Young Woman on Beach with Hands in Pockets

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  • 824-02291154

    Nouilles japonaises Soba

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  • 633-01992451

    Jeune femme avec les cheveux ébouriffés par le vent, souriant à la caméra, gros plan

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  • 695-03377095

    Jeune femme en cheveux brossage de soutien-gorge, recadrée vue latérale

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  • 822-07117390

    Young Woman with Hair Covering Face

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  • 649-08237903

    Fibre optics flowing through circuit boards from a laptop computer, close-up

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  • 679-09160473

    - Immunotherapy, conceptual composite image. Scanning electron microscopy (SEM) and computer generated image (CGI) of DNA (deoxyribonucleic acid) molecules (helices) and a T lymphocyte white blood cell (top right). Therapies such as chimeric antigen receptor (CAR) T-cell cancer immunotherapy reprogram a patient's own immune cells to treat cancer.

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  • 679-07763611

    Erythropoietin. Molecular model of the human erythropoietin (EPO) hormone. Erythropoietin regulates blood oxygen levels in the body, when levels are low it is released to stimulate the formation of red blood cells. It is used illegally as a performance-enhancing drug.

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  • 679-07150833

    Reverse transcriptase and inhibitor. Molecular model of HIV reverse transcriptase complexed with a non-nucleoside reverse transcriptase inhibitor drug.

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  • 679-08518484

    Circular DNA (deoxyribonucleic acid) molecule, computer artwork.

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  • 679-07763951

    Human programmed cell death protein 4, molecular model. This protein is involved in apoptosis (programmed cell death).

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  • 614-08871738

    Young woman with dramatic makeup, black eyeshadow

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  • 679-06672905

    DNA molecule, computer artwork.

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  • 679-06672909

    DNA molecule, computer artwork.

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  • 6113-07160862

    Wicker chairs on deck

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  • 649-08237891

    Strands of fibre optic used to send data, close-up

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  • 679-06779463

    DNA (deoxyribonucleic acid) molecule, computer artwork.

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  • 649-07804813

    Abstract close up of illuminated fiber optic light

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  • 679-06713883

    Tablet computer showing artwork of a DNA molecule.

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  • 649-09213479

    Fibre optic strands carrying data over electronic circuit board of laptop computer

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  • 679-06199094

    Pellicule photographique.

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  • 6113-07160792

    Strand of shells hanging on patio

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  • 679-06672906

    DNA molecule, computer artwork.

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  • 679-07763725

    Immunoglobulin G (IgG) antibody, molecular model. This is the most abundant immunoglobulin and is found in all body fluids. Each Y-shaped molecule has two arms (top) that can bind to specific antigens, for instance bacterial or viral proteins. In doing this they mark the antigen for destruction by phagocytes, white blood cells that ingest and destroy foreign bodies. Antibodies can also kill some p

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  • 679-07150701

    Uroporphyrinogen III decarboxylase. Molecular model of the enzyme human uroporphyrinogen III decarboxylase (UROD). Mutations or deficiencies in this enzyme cause the disorder porphyria with a build up of porphyrins in the body.

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  • 679-05992535

    Molécule d'ADN. Modèle moléculaire de l'ADN (acide désoxyribonucléique).

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  • 679-07150620

    Poliovirus particle, molecular model.

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  • 679-06671861

    DNA molecule, computer artwork. DNA (deoxyribonucleic acid) is composed of two strands twisted into a double helix. DNA contains sections called genes, which encode the body's genetic information.

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  • 679-05992536

    Molécule d'ADN. Modèle moléculaire de l'ADN (acide désoxyribonucléique).

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  • 679-06199172

    Molécule d'ADN, oeuvre de l'ordinateur.

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  • 679-07150686

    Norwalk virus capsid, molecular model. This norovirus, which causes a viral form of gastroenteritis, is transmitted from person-to-person or through contaminated food. In viruses, the capsid is the protein shell that encloses the genetic material. A capsid consists of subunits called capsomeres that self-assemble to form the shell seen here. One of the functions of the capsid is to aid the transmi

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  • 679-06672805

    DNA molecules, computer artwork.

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  • 679-07150557

    Leptin molecule. Molecular model of the human hormone leptin. Leptin is a protein produced by adipose (fat) tissue. It interacts with receptors in the brain's hypothalamus to signal when a person is full. It also circulates in the blood at levels proportionate to body fat, which allows the brain to regulate appetite and metabolism. Mutations in the ob gene that codes for leptin are thought to be r

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  • 679-07763595

    Human interferon beta, molecular model. Interferons are proteins produced by white blood cells as part of the immune response to invading pathogens, especially viruses. They prompt neighbouring cells to produce protective enzymes to stop the proliferation of the pathogen. Interferon beta has anti-inflammatory effects and is used to treat multiple sclerosis (MS).

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  • 679-07150618

    HPV surface protein L1, molecular model. This is a complex made up of the protein L1, found in the capsid (outer protein coat) of the human papilloma virus (HPV). L1 spontaneously forms a complex like this which resembles HPV. These complexes have been used to develop a vaccine (called Gardasil) against the virus. HPV is a sexually transmitted virus that causes warts on the skin or genitals, and i

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  • 679-06672798

    DNA molecule, computer artwork.

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  • 679-07150813

    Parvovirus particle. Molecular model showing the structure of the capsid (outer protein coat) of a human parvovirus (family Parvoviridae) particle. Parvoviridae viruses include the smallest known viruses and some of the most environmentally resistant. Each particle consists of a single-stranded deoxyribonucleic acid (DNA) genome (not shown) surrounded by an icosahedral protein capsid. Many virus p

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  • 679-08026645

    Fat tissue, SEM

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  • 679-07150571

    Erythropoietin. Molecular model of the human erythropoietin (EPO) hormone. Erythropoietin regulates blood oxygen levels in the body, when levels are low it is released to stimulate the formation of red blood cells. It is used illegally as a performance-enhancing drug.

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  • 649-05820212

    Femmes rire ensemble sur la plage

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  • 695-03377096

    Jeune femme en soutien-gorge tenant les cheveux dans la main, à la recherche de suite

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  • 679-07763796

    Caspase-9 complexed with an inhibitor, molecular model. Caspase-9 is a protease, an enzyme that cleaves proteins, that plays a role in apoptosis (programmed cell death). It also activates other caspases as part of the caspase cascade of apoptosis. Caspase-9 has been found to be critical for UV-induced apoptosis in skin cells and therefore, for the prevention of skin cancer.

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  • 6118-07440493

    Organic spaghetti pasta noodles (pasta is made of organic durum wheat semolina)

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  • 679-05797109

    ADN, oeuvre

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  • 679-06671857

    DNA molecule, computer artwork. DNA (deoxyribonucleic acid) is composed of two strands twisted into a double helix. DNA contains sections called genes, which encode the body's genetic information. The background depicts a space star nebula.

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  • 679-06199096

    Pellicule photographique.

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  • 679-09184329

    Leukaemia, conceptual composite image. Scanning electron microscopy (SEM) and computer generated image (CGI) of DNA (deoxyribonucleic acid) molecules (helices) and red and white blood cells. Leukaemia is cancer of the white blood cells. Leukemias are caused by mutations in the DNA of blood cells. These genetic mutations change the way the blood cells reproduce and can also prevent them from funct

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  • 6118-07354012

    Detail of overlapping ornamental grasses

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  • 679-06672804

    DNA molecules, computer artwork.

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  • 679-05797108

    ADN, oeuvre

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  • 679-09164169

    Blood disorders, conceptual composite image. Scanning electron microscopy (SEM) and computer generated image (CGI) of DNA (deoxyribonucleic acid) molecules (helices) and red and white blood cells. There are a number of blood disorders that are caused by genetic mutations and can therefore be passed from parent to child. Such disorders include haemophilia, sickle cell anaemia and thalassaemia. Bloo

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  • 679-06781042

    Genetic engineering, conceptual computer artwork.

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  • 695-03389502

    Jeune femme en soutien-gorge tenant les cheveux, en regardant la caméra

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  • 679-08518492

    Circular DNA (deoxyribonucleic acid) molecule, computer artwork.

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  • 614-08871737

    Young woman with dramatic makeup, black eyeshadow

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  • 679-06671860

    DNA molecule, computer artwork. DNA (deoxyribonucleic acid) is composed of two strands twisted into a double helix. DNA contains sections called genes, which encode the body's genetic information. The background depicts a space star nebula.

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  • 633-01273009

    Femme souriant

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  • 679-07151211

    DNA molecule, computer artwork.

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  • 679-07763643

    Human poliovirus particle. Molecular model of the capsid of the human poliovirus. The capsid is a protein coat that encloses the virus's genetic information (genome), stored as RNA (ribonucleic acid). The protruding proteins are receptors, which enable the virus to recognise and bind to a host cell. Poliovirus infects children and causes poliomyelitis, a disease which in severe cases damages the n

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  • 679-08026643

    Fat tissue, SEM

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  • 679-06199095

    Pellicule photographique.

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