1 - 12 of 13 results
Citric Acid Cycle

This animation shows the reactions of the citric acid cycle, which splits off carbon atoms and generates energy-rich reduced forms of cofactor molecules. It is the first of three animations about cellular respiration.

Electron Transport Chain

This animation shows how the enzyme complexes of the electron transport chain harvest energy from cofactor molecules to pump protons across the mitochondrial membrane and establish a chemical gradient. It is the second of three animations about cellular respiration.

ATP Synthesis

This animation shows how the proton gradient across the mitochondrial membrane powers the ATP synthase enzyme to make ATP. It is the third of three animations about cellular respiration.


This video describes the technology of metabarcoding, which allows scientists to determine herbivore diets based on the sequences of plant DNA extracted from animal dung.

The Origin of Species: Lizards in an Evolutionary Tree

This film explores the adaptation of anole lizards (genus Anolis) to habitats common across the islands of the Caribbean. The anoles are excellent examples of adaptive radiation, convergent evolution, and speciation through reproductive isolation.

Coding Sequences in DNA

This animation describes how only a small part of the human genome directly codes for proteins.

Human Genome Sequencing

This animation shows how the Human Genome Project sequenced the human genome, which contains over 3 billion nucleotides.

Sanger Sequencing

This animation illustrates Sanger sequencing, one of the earliest methods used to sequence DNA.

Shotgun Sequencing

This animation illustrates shotgun sequencing, a method that was used to sequence the human genome.

Triplet Code

This animation describes how many nucleotides encode a single amino acid, which is a key part of the genetic code.