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A ball and stick model of Human Insulin. Isolated on black.
orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).
Biological protein and molecule, 3d rendering. 3D illustration.
Hemp Floral Wax in a petri dish
3D cartoon and Gaussian surface models, PDB 1j7n, chain id color scheme, white background
Inside protein molecule
Bacteria pathogen - 3d rendered microbiology image. Illustrate of Lactobacillus Bulgaricus Bacteria, Microbacterium Tuberculosis Bacteria (MTB). Medical research, health-care concept. SEM (TEM) scanning view
Green algae cells background
Instant soy milk powder in white plate,Alternative milk,healthy concept.Top view
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
DNA close-up, DNA Molecule Model, DNA Strands, DNA animation
snack
B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
In vitro bacterial culture
Green colonies of  allergenic fungus Penicillium from air spores on a petri dish (agar plate) manually isolated on a white background. This microbe is an antibacterial antibiotic penicillin producer. Nutrient agar media used.
Slice of natural crystal for patterns and textures use with high resolution.
After dopamine binding, the dopamine receptor changes his shape and binds the inactive G protein.The G protein expels its GDP molecule replacing it by GTP. and falls into two pieces. The Galpha subunit binds to and activates the enzyme adenylyl cyclase, which produces then cyclic AMP spreading a signal through the cell.
Close-up shot of a petri dish for checking an antibiotic in the laboratory.
Biological protein and molecule, 3d rendering. 3D illustration.
3D cartoon and Gaussian surface models, chain id color scheme,  PDB 2iw2, white background
DNA A-T Pair
Food containing natural iron. Fe: Liver, avocado, broccoli, spinach, parsley, beans, nuts, on a white background. Top view.
Green chlorophyll Cells under heavy magnification isolated on dark background
A quadrant streak of the bacterium Staphylococcus aureus cultured or inoculated on Baird-Parker agar with egg tellurite .
This footage shows the translation initiation complex, which consists of the ribosomal small subunit, transfer RNA (tRNA), and translation initiation factors. The golden ribbon represents the RNA.
Colonies of Candida Albicans growth on Chocolate agar from sputum culture
A molecular model of Bisphenol A or BPA.  It is a common building block in the production of many epoxy resins and plastics including polycarbonate plastic. As such it is present in a huge range of food packaging and household products. There are now concerns about its health effects, particularly its effect on children, infants and fetuses.   Isolated on white.
Biological protein and molecule, 3d rendering. 3D illustration.
Molecular model of lactose, a disaccharide sugar in milk.
Free Images: "bestof:PDB 1c8i EBI.jpg All alpha proteins Heme-dependent peroxidases Heme-dependent peroxidases CCP-like Fungal peroxidase ligninase EBI License 1c8i November 16 2008"
Portret van Jan van Huysum Rijksmuseum SK-A-5008.jpeg.jpg
Thyroid hormone synthesis.svg
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