Image and Video Gallery
This is a searchable collection of scientific photos, illustrations, and videos. The images and videos in this gallery are licensed under Creative Commons Attribution Non-Commercial ShareAlike 3.0. This license lets you remix, tweak, and build upon this work non-commercially, as long as you credit and license your new creations under identical terms.
From DNA to Protein
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Nucleotides in DNA are copied into RNA, where they are read three at a time to encode the amino acids in a protein. Many parts of a protein fold as the amino acids are strung together. Crabtree + Company View MediaRabbit GPDA
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A crystal of rabbit GPDA protein created for X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine View MediaTFIID complex binds DNA to start gene transcription
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Gene transcription is a process by which the genetic information encoded in DNA is transcribed into RNA. Eva Nogales, Berkeley Lab View MediaSerum albumin structure 2
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Serum albumin (SA) is the most abundant protein in the blood plasma of mammals. SA has a characteristic heart-shape structure and is a highly versatile protein. Wladek Minor, University of Virginia View MediaStructure of amyloid-forming prion protein
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This structure from an amyloid-forming prion protein shows one way beta sheets can stack. Douglas Fowler, University of Washington View MediaWeblike sheath covering developing egg chambers in a giant grasshopper
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The lubber grasshopper, found throughout the southern United States, is frequently used in biology classes to teach students about the respiratory system of insects. Kevin Edwards, Johny Shajahan, and Doug Whitman, Illinois State University. View MediaMicrotubules in hippocampal neurons
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Microtubules (magenta) in neurons of the hippocampus, a part of the brain involved in learning and memory. Microtubules are strong, hollow fibers that provide structural support to cells. Melike Lakadamyali, Perelman School of Medicine at the University of Pennsylvania. View MediaCell division with late aligning chromosomes
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This video shows an instance of abnormal mitosis where chromosomes are late to align. Gary Gorbsky, Oklahoma Medical Research Foundation View MediaFour timepoints in gastrulation
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It has been said that gastrulation is the most important event in a person's life. Bob Goldstein, University of North Carolina, Chapel Hill View MediaHuman opioid receptor structure superimposed on poppy
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Opioid receptors on the surfaces of brain cells are involved in pleasure, pain, addiction, depression, psychosis, and other conditions. Raymond Stevens, The Scripps Research Institute View MediaFlower-forming cells in a small plant related to cabbage (Arabidopsis)
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In plants, as in animals, stem cells can transform into a variety of different cell types. The stem cells at the growing tip of this Arabidopsis plant will soon become flowers. Arun Sampathkumar and Elliot Meyerowitz, California Institute of Technology View MediaTransmission electron microscopy of myelinated axons with ECM between the axons
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The extracellular matrix (ECM) is most prevalent in connective tissues but also is present between the stems (axons) of nerve cells, as shown here. Tom Deerinck, National Center for Microscopy and Imaging Research (NCMIR) View MediaFat cells (red) and blood vessels (green)
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A mouse's fat cells (red) are shown surrounded by a network of blood vessels (green). Daniela Malide, National Heart, Lung, and Blood Institute, National Institutes of Health View MediaBreast cancer cells change migration phenotypes
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Cancer cells can change their migration phenotype, which includes their shape and the way that they move to invade different tissues. Bo Sun, Oregon State University. View MediaDimeric ferredoxin-like protein from an unidentified marine microbe
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This is the first structure of a protein derived from the metagenomic sequences collected during the Sorcerer II Global Ocean Sampling project. Joint Center for Structural Genomics View MediaCell-free protein synthesizers
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Both instruments shown were developed by CellFree Sciences of Yokohama, Japan. Center for Eukaryotic Structural Genomics View MediaMeiosis illustration (with labels)
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Meiosis is the process whereby a cell reduces its chromosomes from diploid to haploid in creating eggs or sperm. Crabtree + Company View MediaCone snail shell
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A shell from the venomous cone snail Conus omaria, which lives in the Pacific and Indian oceans and eats other snails. Kerry Matz, University of Utah View MediaMeiosis illustration
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Meiosis is the process whereby a cell reduces its chromosomes from diploid to haploid in creating eggs or sperm. Crabtree + Company View MediaQuartered torso
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Cells function within organs and tissues, such as the lungs, heart, intestines, and kidney. Judith Stoffer View MediaHow cilia do the wave
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Thin, hair-like biological structures called cilia are tiny but mighty. Zvonimir Dogic, Brandeis University View MediaBacterial alpha amylase
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A crystal of bacterial alpha amylase protein created for X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine View MediaPathways: What is Basic Science?
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Learn about basic science, sometimes called “pure” or “fundamental” science, and how it contributes to the development of medical treatments. National Institute of General Medical Sciences View MediaYoung squids
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Real-time movie of young squids. Michael Shribak, Marine Biological Laboratory/University of Chicago. View MediaConfocal microscopy image of two Drosophila ovarioles
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Ovarioles in female insects are tubes in which egg cells (called oocytes) form at one end and complete their development as they reach the other end of the tube. 2004 Olympus BioScapes Competition View MediaHost infection stimulates antibiotic resistance
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This illustration shows pathogenic bacteria behave like a Trojan horse: switching from antibiotic susceptibility to resistance during infection. View MediaThe 26S proteasome engages with a protein substrate
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The proteasome is a critical multiprotein complex in the cell that breaks down and recycles proteins that have become damaged or are no longer needed. Andreas Martin, HHMI View MediaDeveloping Arabidopsis flower buds
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Flower development is a carefully orchestrated, genetically programmed process that ensures that the male (stamen) and female (pistil) organs form in the right place and at the right time in the flowe Nathanaël Prunet, Caltech View MediaPSI: from genes to structures
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The goal of the Protein Structure Initiative (PSI) is to determine the three-dimensional shapes of a wide range of proteins by solving the structures of representative members of each protein family f National Institute of General Medical Sciences View MediaNCMIR Kidney Glomeruli
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Stained glomeruli in the kidney. The kidney is an essential organ responsible for disposing wastes from the body and for maintaining healthy ion levels in the blood. Tom Deerinck, National Center for Microscopy and Imaging Research (NCMIR) View MediaWild-type and mutant fruit fly ovaries
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The two large, central, round shapes are ovaries from a typical fruit fly (Drosophila melanogaster). Vladimir I. Gelfand, Feinberg School of Medicine, Northwestern University. View MediaMitochondria from rat heart muscle cell_2
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These mitochondria (brown) are from the heart muscle cell of a rat. Mitochondria have an inner membrane that folds in many places (and that appears here as striations). National Center for Microscopy and Imaging Research View MediaYeast cells entering mitosis
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Yeast cells entering mitosis, also known as cell division. The green and magenta dots are two proteins that play important roles in mitosis. They show where the cells will split. Alaina Willet, Kathy Gould’s lab, Vanderbilt University. View MediaBond types
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Ionic and covalent bonds hold molecules, like sodium chloride and chlorine gas, together. Hydrogen bonds among molecules, notably involving water, also play an important role in biology. Crabtree + Company View MediaChemokine CXCR4 receptor
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The receptor is shown bound to a small molecule peptide called CVX15. Raymond Stevens, The Scripps Research Institute View MediaInduced stem cells from adult skin 02
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These cells are induced stem cells made from human adult skin cells that were genetically reprogrammed to mimic embryonic stem cells. James Thomson, University of Wisconsin-Madison View MediaRNase A (2)
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A crystal of RNase A protein created for X-ray crystallography, which can reveal detailed, three-dimensional protein structures. Alex McPherson, University of California, Irvine View MediaEpigenetic code (with labels)
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The "epigenetic code" controls gene activity with chemical tags that mark DNA (purple diamonds) and the "tails" of histone proteins (purple triangles). Crabtree + Company View MediaVesicle traffic
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This illustration shows vesicle traffic inside a cell. Judith Stoffer View MediaATP synthase (with labels)
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The world's smallest motor, ATP synthase, generates energy for the cell. See image 2517 for an unlabeled version of this illustration. Crabtree + Company View MediaFocal adhesions
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Cells walk along body surfaces via tiny "feet," called focal adhesions, that connect with the extracellular matrix. Crabtree + Company View MediaWound healing in process
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Wound healing requires the action of stem cells. Hermann Steller, Rockefeller University View MediaNucleotides make up DNA (with labels)
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DNA consists of two long, twisted chains made up of nucleotides. Each nucleotide contains one base, one phosphate molecule, and the sugar molecule deoxyribose. Crabtree + Company View MediaLarvae from the parasitic worm that causes schistosomiasis
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The parasitic worm that causes schistosomiasis hatches in water and grows up in a freshwater snail, as shown here. Bo Wang and Phillip A. Newmark, University of Illinois at Urbana-Champaign, 2013 FASEB BioArt winner View MediaCRISPR Illustration Frame 1
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This illustration shows, in simplified terms, how the CRISPR-Cas9 system can be used as a gene-editing tool. This is the first frame in a series of four. National Institute of General Medical Sciences. View MediaNetwork Map
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This network map shows the overlap (green) between the long QT syndrome (yellow) and epilepsy (blue) protein-interaction neighborhoods located within the human interactome. Seth Berger, Mount Sinai School of Medicine View MediaWhite Poppy
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A white poppy. View cropped image of a poppy here 3423. Judy Coyle, Donald Danforth Plant Science Center View MediaHair cells: the sound-sensing cells in the ear
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These cells get their name from the hairlike structures that extend from them into the fluid-filled tube of the inner ear. Henning Horn, Brian Burke, and Colin Stewart, Institute of Medical Biology, Agency for Science, Technology, and Research, Singapore View MediaSerratezomine A
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A 3-D model of the alkaloid serratezomine A shows the molecule's complex ring structure. View Media