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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.

RNA strand (with labels)

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Ribonucleic acid (RNA) has a sugar-phosphate backbone and the bases adenine (A), cytosine (C), guanine (G), and uracil (U). Featured in The New Genetics. Crabtree + Company View Media

Nucleolus subcompartments spontaneously self-assemble 2

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The nucleolus is a small but very important protein complex located in the cell's nucleus. Nilesh Vaidya, Princeton University View Media

Haplotypes

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Haplotypes are combinations of gene variants that are likely to be inherited together within the same chromosomal region. Crabtree + Company View Media

CRISPR Illustration

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This illustration shows, in simplified terms, how the CRISPR-Cas9 system can be used as a gene-editing tool. National Institute of General Medical Sciences. View Media

Lily mitosis 13

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A light microscope image of cells from the endosperm of an African globe lily (Scadoxus katherinae). This is one frame of a time-lapse sequence that shows cell division in action. Andrew S. Bajer, University of Oregon, Eugene View Media

Ciclo circadiano de un adolescente típico

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Los ritmos circadianos son cambios físicos, mentales y conductuales que siguen un ciclo de 24 horas. NIGMS View Media

Pulsating response to stress in bacteria

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By attaching fluorescent proteins to the genetic circuit responsible for B. subtilis's stress response, researchers can observe the cells' pulses as green flashes. Michael Elowitz, Caltech University View Media

HIV enzyme

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These images model the molecular structures of three enzymes with critical roles in the life cycle of the human immunodeficiency virus (HIV). Amy Wu and Christine Zardecki, RCSB Protein Data Bank. View Media

Fruit fly ovarioles

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Three fruit fly (Drosophila melanogaster) ovarioles (yellow, blue, and magenta) with egg cells visible inside them. Ovarioles are tubes in the reproductive systems of female insects. Vladimir I. Gelfand, Feinberg School of Medicine, Northwestern University. View Media

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 Media

CRISPR Illustration Frame 2

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This illustration shows, in simplified terms, how the CRISPR-Cas9 system can be used as a gene-editing tool. National Institute of General Medical Sciences. View Media

Interphase in Xenopus frog cells

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These images show frog cells in interphase. The cells are Xenopus XL177 cells, which are derived from tadpole epithelial cells. The microtubules are green and the chromosomes are blue. Claire Walczak, who took them while working as a postdoc in the laboratory of Timothy Mitchison. View Media

Telomeres on outer edge of nucleus during cell division

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New research shows telomeres moving to the outer edge of the nucleus after cell division, suggesting these caps that protect chromosomes also may play a role in organizing DNA. Laure Crabbe, Jamie Kasuboski and James Fitzpatrick, Salk Institute for Biological Studies View Media

Developing zebrafish fin

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Originally from the waters of India, Nepal, and neighboring countries, zebrafish can now be found swimming in science labs (and home aquariums) throughout the world. Jessica Plavicki View Media

Life of an AIDS virus (with labels)

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HIV is a retrovirus, a type of virus that carries its genetic material not as DNA but as RNA. Crabtree + Company View Media

Induced stem cells from adult skin 03

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The human skin cells pictured contain genetic modifications that make them pluripotent, essentially equivalent to embryonic stem cells. James Thomson, University of Wisconsin-Madison View Media

Computer sketch of bird-and-flower DNA origami

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A computer-generated sketch of a DNA origami folded into a flower-and-bird structure. See also related image 3690. Hao Yan, Arizona State University View Media

DNA replication illustration (with labels)

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During DNA replication, each strand of the original molecule acts as a template for the synthesis of a new, complementary DNA strand. Crabtree + Company View Media

Dicty fruit

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Dictyostelium discoideum is a microscopic amoeba. A group of 100,000 form a mound as big as a grain of sand. Featured in The New Genetics. View Media

A molecular interaction network in yeast 3

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The image visualizes a part of the yeast molecular interaction network. Keiichiro Ono, UCSD View Media

Precise development in the fruit fly embryo

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This 2-hour-old fly embryo already has a blueprint for its formation, and the process for following it is so precise that the difference of just a few key molecules can change the plans. Thomas Gregor, Princeton University View Media

Endoplasmic reticulum abnormalities 2

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Human cells with the gene that codes for the protein FIT2 deleted. After an experimental intervention, they are expressing a nonfunctional version of FIT2, shown in green. Michel Becuwe, Harvard University. View Media

Chromosome inside nucleus (with labels)

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The long, stringy DNA that makes up genes is spooled within chromosomes inside the nucleus of a cell. Crabtree + Company View Media