This animation shows how the random deactivation of one of the X chromosomes in a pair can lead to a mozaicism in the expression genes.
This animation shows how a growing tumor can recruit nearby blood vessels in order to gain a supply of blood.
This animation demonstrates how cancerous cells could be destroyed using a modified virus.
Slippage during DNA replication can lead to expanding sections of repeating nucleotides. Watch this animation to see how this problem occurs.
Illustrates how studying one family's pedigree can reveal an entire history of passing on a genetic disorder such as SCA1.
This animation illustrates how mistakes made during DNA replication are repaired.
A 3D animation showing how proteins in the cell are tagged for disposal and degraded by the proteasome.
A 3D animation showing the molecule p53 binds to DNA and initiates the transcription of mRNA.
This animation shows how the protein MECP2, in conjuction with another protein complex, can act as an "on-off' switch for gene expression.
A cancer tumor forms in a bed of healthy cells. The animation goes on to show how the tumor recruits blood vessels and how metastasis occurs.
A useful technique for narrowing down the location of a gene involves comparing the chromosomes of affected siblings. Two sisters with Rett syndrome allow researchers an opportunity to map the most likely location of the gene by excluding areas of the chromosome that are not alike.
Gleevec is a drug designed to interfere with the stimulation of growth in leukemia cells. This 3D animation shows how this is achieved.