File:Human zygote two pronuclei 22.jpg

Human Zygote

• Early zygote showing the two pronuclei (male and female) containing nucleolar precursor bodies.
• Polar bodies are seen
• Zygote observed after 18-20 hours after insemination.

Original magnification ×400, for the paper publication not the online image.

Image Links: Zygote | Human zygote two pronuclei 01 | Human zygote two pronuclei 02 | Human zygote two pronuclei 03 | Human zygote two pronuclei 02 labelled

Reference

<pubmed>20579351</pubmed>| Reprod Biol Endocrinol.

© 2010 Nicoli et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Original File name: Figure 2. 1477-7827-8-77-2-l.jpg

The original figure (C) was extracted from the full panel image and modified using Photoshop with the addition of labels:

(C) 2PN centralized and juxtaposed, NPBs non polarized with dispersed or not completely aligned NPBs in the 2PN, longitudinal PB alignment.

(A) 2PN centralized and juxtaposed, NPBs aligned on the side of the 2PN, longitudinal PB alignment. (B) 2PN centralized and juxtaposed, NPBs dispersed in the 2PN, perpendicular PB alignment. (C) 2PN centralized and juxtaposed, NPBs non polarized with dispersed or not completely aligned NPBs in the 2PN, longitudinal PB alignment. (D) 2PN centralized and juxtaposed, NPBs aligned on the side of the 2PN, neither longitudinal nor perpendicular PB alignment. Black narrows indicate the PBs. (A) and (B) were examples of zygotes included in Pattern 1 group, while (C) and (D) were examples of zygotes included in Pattern 2 group.