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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
121

Mitochondrial-chloroplast interactions studies using the NCS mutants of maize /

Thornsberry, Jeffry M. January 1999 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 1999. / Typescript. Vita. Includes bibliographical references (leaves 111-127). Also available on the Internet.
122

Evaluation et optimisation de stratégies de correction génique

Leclerc, Xavier Kichler, Antoine. January 2008 (has links) (PDF)
Thèse de doctorat : Génétique cellulaire et moléculaire : Evry-Val d'Essonne : 2008. / Titre provenant de l'écran-titre.
123

Understanding sedlin and the molecular basis of spondyloepiphyseal dysplasia tarda

Chan, Chun-yin, Caleb. January 2009 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2009. / Includes bibliographical references (p. 290-314). Also available in print.
124

Understanding sedlin and the molecular basis of spondyloepiphyseal dysplasia tarda /

Chan, Chun-yin, Caleb. January 2009 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2009. / Includes bibliographical references (p. 290-314). Also available online.
125

Chinese B thalassaemia : DNA polymorphisms and specific mutations /

Tan-Un, Kian-cheng. January 1986 (has links)
Thesis (Ph. D.)--University of Hong Kong, 1987.
126

Characterization of an auxin- and abscisic acid-inducible reporter gene : Dc3-GUS in reported auxin mutants, and mutant screening based on auxin responsive Dc3-GUS expression /

Sun, Xin. January 2003 (has links)
Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2003. / Includes bibliographical references. Also available in electronic version. Access restricted to campus users.
127

The effects of dietary restriction on mutation

Bavinton, Holly B. January 2002 (has links)
Thesis (M. Sc.)--York University, 2002. Graduate Programme in Biology. / Typescript. Includes bibliographical references (leaves 74-79). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://wwwlib.umi.com/cr/yorku/fullcit?pMQ71565.
128

Protein unfolding and stability : a computational study of barnase

Knaggs, Michael Henry January 1999 (has links)
No description available.
129

A GENETIC STUDY OF SORGHUM BICOLOR (L.) MOENCH INVOLVING CROSSES BETWEEN MALE STERILES-1, -3, AND -7 AND A NUMBER OF SEEDLING MUTANTS

Krammes, Cynthia Ann January 1985 (has links)
No description available.
130

ENVIRONMENT-DEPENDENT CAUSES AND CONSEQUENCES OF MUTATION IN SACCHAROMYCES CEREVISIAE

Kozela, Christopher Paul 18 April 2012 (has links)
Environmental effects on mutation have been documented for many years but have concentrated on agents that directly interact with DNA. Mutation research in its early history investigated a variety of more mundane environmental factors at levels that inhibited biological function and attempted to characterize their mutagenicity. This thesis revisits these old questions armed with more modern methods. It consists of one review chapter and three experimental chapters. The review chapter proposes that biological organization itself acts to direct mutation pressure, and that many mutations are context dependent within this organization. Experimentally, I performed an approximately 1,500-generation mutation accumulation (MA) experiment using the budding yeast Saccharomyces cerevisiae as an evolutionary genetic model. This thesis investigates the rates and distribution of effects of new mutations on fitness when they accumulate under a moderate salt stress. The first experimental section describes the production of the MA lines, measures the diploid fitness traits mitotic growth rate and sporulation, and uses changes in fitness among replicate lines to infer mutation parameters affecting these traits. Mutation rate estimates for these traits were roughly doubled in the salt stress treatment. The proportion of beneficial mutations was high for mutations affecting sporulation in both MA treatments but zero for growth rate. Measurements of haploid viability and haploid growth rate on strains derived from the diploid MA lines were used to infer mutation parameters. Mutation rates affecting haploid growth were ten-fold higher in our salt-line derivatives than those derived from the non-stress treatment. Variance component analysis identified a large fraction of genetic variation arising from differences among haploids within the same tetrad. This component was significantly larger in the salt MA treatment than the non-stress treatment. MA lines were subjected to a novel weak-acid stress. Mutation rate estimates were 38-fold higher in the salt MA treatment when lines were tested under acid stress. Cross-environmental genetic correlation for growth in acid stress versus standard media was significantly different between the two MA treatments suggesting that both MA environment and test environment are important factors when considering mutational effects on fitness.

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