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.
Ground and polished sections and scanning electron microscopy (SEM) images of the eggshell (ES) and its membranes in unfertilized (left) and fertilized egg (right), showing dissolution of the innermost portion of the ES and detachment of the membranes during incubation of the fertilized egg. Brackets- dissolved mammillary tips; asterisks- intact mammillary tips; arrows- residual membrane fibers. ED17 stands for day 17 of incubation. Scale bars, 10 μm (Hincke et al., 2019).
