title: H2A
text: # H2A
  
  H2A, H-2A or H-IIA can refer to:
  
  * Histone H2A, a component of DNA higher structure in eukaryotic cells
  * H-IIA, a family of Japanese rockets.
  * H-2A Visa, a temporary, nonimmigrant visa allowing foreign nationals entry into the U.S. for seasonal agricultural work.
  