© 1975 Nature Publishing Group

© 1975 Nature Publishing Group

© 1975 Nature Publishing Group

© 1975 Nature Publishing Group

© 1975 Nature Publishing Group

© 1975 Nature Publishing Group

Nuclear envelope permeability.

The permeability of the amphibian oocyte nuclear envelope in situ has been determined for three tritiated dextrans. The envelope is a sieve, restricti...
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