Final answer:
Verprolin in yeast regulates the actin component of the cytoskeleton, specifically impacting microfilaments which are vital for cell shape, motility, and division.
Step-by-step explanation:
The component of the cytoskeleton that verprolin regulates in yeast is associated with actin, specifically microfilaments within the broader cytoskeletal network. Verprolin is known to interact with actin in yeast, playing a key role in actin polymerization and therefore impacting cell shape, motility, and division. In eukaryotic cells, the actin microfilaments are essential for various cellular processes, and verprolin's interaction ensures proper maintenance and function of this cytoskeletal component.