Ejaculated and epididymal mouse spermatozoa are different in their susceptibility to nuclease-dependent DNA damage and in their nuclease activity.
Yamauchi Y, Ajduk A, Riel JM, Ward MA. Ejaculated and epididymal mouse spermatozoa are different in their susceptibility to nuclease-dependent DNA damage and in their nuclease activity. Biol Reprod. 2007 Oct; 77(4):636-47.