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FISH examination of In(1)sc4Lsc8R/Dp(1;Y)BSC76 disjunction in 4′,6-diamidino-2-phenylindole (DAPI)-stained spermatocytes using an X probe (Red) and an AATAC repeat Y probe (Green). (A) Normal XY segregation during meiosis I and (B) meiosis I NDJ. (C) Meiosis II division after a normal meiosis I division and (D) after a meiosis I NDJ. Bar, 2 µm.
