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.
Stage VII tubules from a control rat (A) and a rat given an antimitotic agent for 2 weeks (B). Preleptotene spermatocytes are present adjacent to the basement membrane (arrows) in the control rat and are absent following mitotic inhibition.
