What happened to all of the quarks that existed freely during the particle era?

Question

Quizplus · Accepted Answer

During the particle era, quarks existed freely as a soup of particles called quark-gluon plasma. However, as the universe expanded and cooled, the quarks combined in groups of two or three to form protons, neutrons, and their antiparticles. This process is called hadronization, and it is believed to have occurred about one microsecond after the Big Bang. Therefore, the quarks did not disappear but rather transformed into other particles during the formation of matter in the early universe.

What Happened to All of the Quarks That Existed Freely