Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Bidirectional motility of a single melanosome along an axoneme-nucleated microtubule observed by video-enhanced DIC microscopy. Portions of a video sequence showing (A) minus end-directed motility and (B) plus end-directed motility of the same melanosome (arrowheads). The elapsed time between frames is 2 s. (Bar = 6 μm.)
