The current coronavirus disease 2019 (COVID-19) pandemic has claimed over 1.9 million lives so far, and scientists have been racing to develop vaccines that will curtail its spread. Most of these ...
This is a preview. Log in through your library . Abstract Centrifuged, unfertilized eggs of the sea urchin, Arbacia punctulata, have been studied with the electron microscope. Subcellular particles ...
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