Book of Donmon Teith

material can serve both autocatalytic and heterocatalytic functions. Thus not only is it unique in itB capacity for self-replication but its base sequence deter

International Review of Cytology

Since 1961 the author has taught a course in Cytogenetics at Montana State University. Undergraduate and graduate stu dents of Biology, Chemistry, Microbiology,

neoessity for making it. Yet, clearly, the problem of development is largely one of filling "the vacuum between determinant and character" (DARLINGTON 1951). No