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Biol Bull 140: 369-375. (June 1971)
© 1971 Marine Biological Laboratory
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REMOVAL OF THE FERTILIZATION MEMBRANE OF FERTILIZED EGGS OF URECHIS CAUPO AND DEVELOPMENT OF "MEMBRANELESS" EMBRYOS

WILMA SILVA ENGSTROM 1

1 Department of Zoology, University of California, Berkeley, California 94720

It has been shown that the fertilization membrane of the Urechis embryo can be removed by treatment with a sucrose-EDTA solution. The resulting membraneless embryos appear to undergo nearly normal embryogenesis, differing from the controls only in shape, degree of motility and ability to form double-embryos.






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Copyright © 1971 by the Marine Biological Laboratory.