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.
Cell phenotypes in the early mouse embryo. (A) Gastrulating mouse embryo at embryonic day (E) 7.5. (C') Scanning electronic micrograph of a transverse section through a E7.5 mouse embryo showing the different cell phenotypes: columnar epithelium, mesenchyme and squamous epithelium. (B) Diagram of the embryonic part of a e7.5 mouse embryo. Dashed box outlines the three germ layers. (C) Scanning micrograph shown in (B and C') color-coded for the three germ layers.
