Ms. Xiao-Xin Ma, whose major is Marine Biology, talked about oogenesis especially about the vitellogenesis and cortical granule biogenesis in teleosts. Her presentation was based on a review written by C.R. Tyler and J.P. Sumpter, which was published on Reviews in Fish Biology and Fisheries 6, 287-318 (1996). (Photo by Dr. Wan-Xi Yang)