Abnormal Eggs

Histochemical observations of lipid droplets and glycogen in mouse eggs with abnormal development.

Normal Abnormal Normal Abnormal

reference electrode (3). The ionized calcium concentration of sequential retentates prepared by ultrafiltration of a human control serum increased with increasing protein concentration in a way consistent with Donnan theory (4, 5) when the analyzers’ standard reference-electrode liquid junctionswere used; however, the ionized calcium in the same retentates declined slightly with increasing prot...

Happy Eggs

The world of scientific discovery often remains far-fetched to ordinary people. Although the significance of engaging the public and making the science accessible has been increasingly recognised, few efforts have been made to investigate the popular stereotype of ‘crazy’ scientists, ambitious and sometimes nerdy. Whilst the media tend to focus on very few glamorous scientist celebrities, the m...

Cytologic Studies on the Abnormal Development of the Eggs of the Claret Mutant Type of Drosophila Simulans.

LTHOUGH many instances of abnormal development of zygotes A containing mutant genes have been described in the course of genetic studies on Drosophila, few attempts have been made to determine the mechanism of such development. Much of the material which has been studied has been poorly adapted to genetic analysis of this problem, since mutant genes usually produce developmental abnormalities s...

Cleavage delay and abnormal morphogenesis in Lymnaea eggs after pulse treatment with azide of successive stages in a cleavage cycle.

Heat treatments of short duration of successive stages in a cleavage cycle of Lymnaea eggs differentially affect the division cycle and morphogenesis. Effects on the division cycle are most pronounced after a treatment during actual cleavage, at the end of interphase and during prometaphase. Abnormal morphogenesis is only found when a heat shock is applied during metaphase-anaphase stages; afte...