Student Theses and Dissertations

Date of Award


Document Type


Degree Name

Doctor of Philosophy (PhD)

RU Laboratory

Bronk Laboratory


The amphibian embryo has been a fascinating object for study for a century or more. It is large in size, widely available, and easy to observe throughout embryogenesis. The control of early development and the role of the genes have also been investigated for a long time. The combination of older morphological and more recent biochemical descriptions of development under normal and experimental conditions are bringing us closer to an understanding of the mechanism of early differentiation.


A thesis submitted to the Faculty of The Rockefeller University in partial fulfillment of the requirements for the degree of Doctor of Philosophy

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