Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Bull sperms with TUNEL assay by fluorescence microscopy. a: DAPI stained sperm samples with the objective#1. b: TUNEL assay with the objective#2. c: Overlap of two pictures; white arrow indicates DNA fragmented sperm cells (apoptotic) which stained as green whereas blue star shows DNA integrity of the sperm (non-apoptotic) containing blue color.
