A growth cone contacts a repellant molecule on another axon, collapses, and withdraws.
A live recording of muscle activity from Dr. Jessell's biceps and triceps muscles.
A reduction in the level of sonic hedgehog (SHH) gene expression can lead to cyclopia.
Dr. Bassler demonstrates the bioluminescence of a culture of Vibrio harveyi.
Quorum sensing signal molecules have parts that are common between species as well as species-specific parts.
A demonstration by Dr. Barbara Meyer of how a branched genetic pathway can be affected by mutations in different parts of the pathway.
Retinal axons travel across the brain, reading navigation cues, to find appropriate targets.
Dr. Harshad Vishwasrao guides you through a collection of images showing neuronal growth and synaptic formation representative of anatomical changes that occur during learning.