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DNA close-up, DNA Molecule Model, DNA Strands, DNA animation

orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).

nanotechnology and abstract graphene structures

3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background

A ball and stick + ribbons model of beta-secretase - a protein that is important in forming healthy peripheral nerve cells, but is also involved in the onset of Alzheimer's disease.

Nucleosome structure. Structure of an oligonucleosome, showing the packaging of DNA in chromosomes. 3D illustration.

Different fresh products and paper with Tyrosine chemical formula on white wooden table, flat lay. Sources of essential amino acids

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.

3D cartoon and Gaussian surface models, chain id color scheme, PDB 2iw2, white background

A molecular model of Adenosine Triphosphate, or ATP. It plays a vital biological role in transporting chemical energy between living cells.

Proteasomes are molecular machines for breaking down proteins called proteolysis, only target proteins that have been marked for destruction called ubiquitin to the target protein, 3d rendering

Chemical formula of ATP on a futuristic background

Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet), ampicillin (red).

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3D cartoon and Gaussian surface models, chain id color scheme, PDB 2y73, white background

A ribbons model of an antibody, also known as immunoglobin. The immune system produces antibodies (using white blood cells) which then identify and attack viruses and bacteria.

Copper(II) sulfate with molecular structure. Chemical ingredient used in medical and public health issues.

The DNA tetrahedron is designed to be mechanically robust; it consists of rigid triangles of DNA helices covalently joined at the vertices

Rendered coronavirus/2019-nCoV single-stranded RNA, built from experimentally determined Ebola virus crystal structure. Color symbols - bluewhite=carbon, pink=oxygen, lightblue=nitrogen, white=hydrogen, lavender=phosphorus

Immunotherapy of Alzheimer's disease: Monoclonal antibody (light blue) bound to an amyloid beta peptide (orange), that is aggregated to amyloid beta fibrils, which build up amyloid plaques.

3D cartoon and Gaussian surface models, chain id color scheme, PDB 6jod, putative membrane is shown, white background

A ball and stick model of a strand of a molecule of polyvinyl chloride, more commonly known as PVC. This vinyl polymer is one of the commonest plastics in use.

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Constant-k Filter Transmission Parameters.svg

Ketocarboxylic Acids General Formulae V.1.svg

Fixed-points theory and variance minimization (dynamic vibration absorber) (SVG).svg

Constant-k Filter Gain with Multiple Half-Sections.svg

Comparison of properly and improperly scaled picture graph.svg