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Biol Bull 67: 519-533. (December 1934)
© 1934 Marine Biological Laboratory
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ON THE REALITY OF SPINDLE FIBERS

FRANZ SCHRADER 1

1 DEPARTMENT OF ZOÖLOGY, COLUMBIA UNIVERSITY, NEW YORK CITY

1. By centrifuging, the fibers or components of the half-spindle are bent and distorted, not only as a group but also independently of each other.

2. Metaphases so treated continue their mitotic activities and it is concluded that the half-spindle components as seen in fixed preparations are not coagulation artefacts but have a morphological basis in the living spindle.

3. The experiments lend further support to the claim that half-spindle components and interzonal connections differ from each other in structure and certain other physical properties.






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Copyright © 1934 by the Marine Biological Laboratory.