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.
Weakly attached bivalents in aged oocytes. (A) Four weakly attached bivalents in an aged oocyte, marked by arrowheads (inset). (B,C) Percentage of oocytes with weakly attached bivalents (B) and the number present per oocyte (C; the horizontal line indicates the mean). Scale bar: 10 μm. ACA, anti-centromeric antibodies. (B) Fisher’s exact test; (C) Mann-Whitney U.
