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1 April 1976
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In this Issue
The polymerization of actin: II. how nonfilamentous actin becomes nonrandomly distributed in sperm: evidence for the association of this actin with membranes
Organization of the flagellar apparatus and associate cytoplasmic microtubules in the quadriflagellate alga Polytomella agilis.
Genetic analysis of membrane differentiation in Paramecium. Freeze-fracture study of the trichocyst cycle in wild-type and mutant strains.
Quantitation of junctional and extrajunctional acetylcholine receptors by electron microscope autoradiography after (125)I-α-bungarotoxin binding at mouse neuromuscular junctions
Isolation of intact megakaryocytes from guinea pig femoral marrow. Successful harvest made possible with inhibitions of platelet aggregation; enrichment achieved with a two-step separation technique.
EvolutionThe evolution of the cytoskeleton