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   <dim:field mdschema="dc" element="contributor" qualifier="advisor" lang="en_US">David Botstein.</dim:field>
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   <dim:field mdschema="dc" element="date" qualifier="copyright" lang="en_US">1982</dim:field>
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   <dim:field mdschema="dc" element="description" lang="en_US">Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Biology, 1982.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Vita.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Bibliography: leaves 211-223.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="statementofresponsibility" lang="en_US">by Douglas Elliott Koshland.</dim:field>
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   <dim:field mdschema="dc" element="subject" lang="en_US">Biology.</dim:field>
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