Research Article

A Sensitive and Rapid Assay for Investigating Vertical Transmission of Hepatitis B Virus via Male Germ Line Using EGFP Vector as Reporter

Figure 4

One-cell embryo showing a male and a female pronuclei (a), and two-cell embryo one nucleus in each, (b) 24 hours after insemination (arrows). 400 X, under phase contrast microscope.
495436.fig.004a
(a)
495436.fig.004b
(b)