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.
Structural changes and alternative alignments of chromosomes during meiosis I. (A) During MI, bivalents align at the metaphase plate of the meiotic spindle before chromosomes are segregated. (B) Cohesin is lost from chromosomes with advancing female age. (C) Schematic illustrating alterations in the architecture of chromosome bivalents with advancing maternal age. MI, meiosis I
