The Possibility of Branch Conformation in Azotobacter Vinelandii Chromosomal DNA Carrying Multiple Gene Copies and Its Folded State in the Cell Page: 87
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first or second case proposed is more likely to be a proper model of
branch structure in the A. vinelandii chromosome.
The unique and heretofore unexplainable genetic characteris-
tics of A. vinelandii can not be solved with theories. Neither can
they be explained by the mechanisms of bacterial genetics accepted
at this time.
This study was initiated to find a solution which would
reconcile genetic observations with DNA structure. Two possible
mechanisms which would do this are proposed. These are presented
as the conclusion of this work and represent the only tenable
explanations of azotobacter genetic systems. The data presented
here do not permit selections of one over the other.
This work is in agreement with all reports in the literature
regarding azotobacter mutations and also with reports on DNA
branch points in genetic recombination (6, 10, 12, 30, 34, 50, 56).
Experimentally, electron micrographs from this study gave a more
reliable aspect of branch structure than that available in the
literature.
Branch conformation of DNA molecules is a new concept in
both eukaryotes and prokaryotes. The major parts in this study were
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Choi, Munhyeong. The Possibility of Branch Conformation in Azotobacter Vinelandii Chromosomal DNA Carrying Multiple Gene Copies and Its Folded State in the Cell, thesis or dissertation, August 1991; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc798271/m1/93/: accessed July 18, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .