𝔖 Bobbio Scriptorium
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Coagulation of sea urchin egg protoplasm by high salt concentrations

✍ Scribed by T. Takahashi; M. Douglas; R.J. Williams


Book ID
115849541
Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
116 KB
Volume
16
Category
Article
ISSN
0011-2240

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## Abstract Sperm nucleus decondensing activity (NDA) of eggs has been investigated using the gametes of the sea urchin, __Lytechinus variegatus__. To assay for NDA, isolated sperm heads were exposed to homogenate from mature unfertilized ova and then examined with phase‐contrast optics. NDA is ret