What do frets do on a ukulele?

Frets on a Ukulele serve as markers that help musicians accurately place their fingers to produce specific pitches. Each fret represents a half-step increase in pitch, allowing players to easily navigate the instrument's neck and play different notes and chords. By pressing down on the strings against the frets, players can create a variety of sounds and melodies. Frets enhance the overall playability and versatility of the ukulele.