• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 741
  • 189
  • 165
  • 106
  • 38
  • 18
  • 15
  • 7
  • 6
  • 5
  • 5
  • 5
  • 3
  • 3
  • 2
  • Tagged with
  • 1711
  • 266
  • 253
  • 247
  • 241
  • 210
  • 204
  • 185
  • 181
  • 176
  • 174
  • 164
  • 147
  • 145
  • 144
  • 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.

Security of Personal Genome

Smith, Gregory H. 08 1900 (has links)
Submitted to the faculty of the University Graduate School in partial fulfillment of the requirements for the degree Master of Science in the Department Informatics of, Indiana University, August 2003

Studies on vaccinia virus C2L : a member of the kelch family of proteins

Pires de Miranda, Marta January 2002 (has links)
No description available.

Cloning and characterisation of arkadia, a recessive, lethal, gene trap mutation

Swan, Daniel January 2000 (has links)
No description available.

Advancing canine genomics : from map building to population studies /

Parker, Heidi Gayle. January 2004 (has links)
Thesis (Ph. D.)--University of Washington, 2004. / Vita. Includes bibliographical references (leaves 117-137).

Mitotic failure and genome stability in benign, premalignant and malignant human tissues /

Steinbeck, Rüdiger G., January 1900 (has links)
Diss. (sammanfattning) Stockholm : Karol. inst. / Härtill 8 uppsatser.

Genomic studies of expanded trinucleotide repeats : focus on neuropsychiatric disorders /

Lindblad, Kerstin, January 1900 (has links)
Diss. (sammanfattning) Stockholm : Karol. inst. / Härtill 7 uppsatser.

Characterisation of a serotype 1 porcine enterovirus

Doherty, Michelle January 1999 (has links)
No description available.

Mapping in the Maydeae : Tripsacum genes in Zea

Winata, T. Therry Indra January 2000 (has links)
Comparisons using cDNA (cloned DNA from expressed genes) from different species greatly increases our understanding and ability to identify the changes in the genetic content of related species through the process of evolution.This research utilized cDNA isolated from developmentally staged female flowers of Tripsacum, a relative of modem maize (corn) with differing modes of reproductive behaviors. The gene expression clone libraries potentially carry the gene(s) responsible for the regulation of fertility, both apomixis and sexual reproduction, in Tripsacum sp. A set of yeast genes with known functions in the reproductive cell division known as meiosis were also investigated, but failed to hybridized to DNA of the maize mapping population.The Tripsacum cDNAs, E2-42 and M2-62, showed monomorphic band patterns, i.e., no differences between individuals. Possibility the quantity of E242 and M2-62 Tripsacum cDNAs for these locus were highly conserved with respect to the fragment lengths generated by restriction digestion of the test individuals. The Tripsacum cDNA sequence L4-14 revealed polymorphic bands patterns when used as a probe for mapping. The L4-14 polymorphisms were scored as both 1:2:1 and 3:1 segregation ratios and mapped to a subset of ordered loci from the Maize Database genome bank, University of Missouri. Two genetic map regions were identified as linked to the L4-14 locus. These regions included bin 6.05-6.08 of chromosome 6 and bin 8.00-.05 of chromosome 8. Linkage to two different chromosomal regions indicated that the L4-14 sequence may be duplicated within the maize genome. Results and discussion of this investigation and analyses are presented. / Department of Biology

Design and optimization of engineered nucleases for genome editing applications

Lin, Yanni 07 January 2016 (has links)
Genome editing mediated by engineered nucleases, including Transcription Activator-Like Effector Nucleases (TALENs) and Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) / CRISPR-associated (Cas) systems, holds great potential in a broad range of applications, including biomedical studies and disease treatment. In addition to creating cell lines and disease models, this technology allows generation of well-defined, genetically modified cells and organisms with novel characteristics that can be used to cure diseases, study gene functions, and facilitate drug development. However, achieving both high efficiency and high specificity remains a major challenge in nuclease-based genome editing. The objectives of this thesis were to optimize the design of TALENs to achieve high on-target cleavage activity, and analyze the off-target effect of CRISPR/Cas to help achieve high specificity. Based on experimental evaluation of >200 TALENs, we compared three different TALEN architectures, proposed new TALEN design rules, and developed a Scoring Algorithm for Predicting TALEN Activity (SAPTA) to identify optimal target sites with high activity. We also performed a systematic study to demonstrate the off-target cleavage by CRISPR/Cas9 when DNA sequences contain insertions or deletions compared to the RNA guide strand. Our results strongly indicate the need to perform comprehensive off-target analysis, and suggest specific guidelines for reducing potential off-target cleavage of CRISPR/Cas9 systems. The studies performed in this thesis work provide important insight and powerful tools for the optimization of engineered nucleases in genome editing, thus making a significant contribution to biomedical engineering and medical applications.

Telomere-associated proteins in Arabidopsis thaliana

Surovtseva, Yulia V. 15 May 2009 (has links)
Telomeres comprise the physical ends of chromosomes. Essential functions of telomeres include protecting the terminus from being recognized as a DNA doublestrand break and facilitating the complete replication of the physical end of the DNA. Telomere functions are mediated by a large array of telomere-associated proteins. Mutations in telomere-related genes cause immediate telomere dysfunction, activation of DNA damage response, and accumulation of end-to-end chromosome fusions. In addition, changes in telomere complex composition may affect the ability of the telomerase enzyme to maintain telomeres in vivo. Here, we describe the characterization of telomere-associated proteins in the flowering plant, Arabidopsis thaliana. Using a bioinformatics approach, we identified twelve proteins with sequence similarity to vertebrate duplex telomere DNA binding proteins TRF1 and TRF2. We showed that, like their vertebrate counterparts, some of the Arabidopsis TRFL (TRF-LIKE) proteins can homodimerize and bind telomeric DNA in vitro, indicating that Arabidopsis encodes a large family of double-strand telomeric DNA binding proteins. We have also characterized three Arabidopsis POT1 proteins whose homologs in yeast and vertebrates associate with the single-stranded portion of telomeric DNA. Unexpectedly, we found that unlike POT1 protein in other organisms, Arabidopsis AtPOT1a protein associates with telomeres only in the S phase of the cell cycle and is a physical component of the active telomerase RNP complex, providing positive telomere length regulation. Our data implicated AtPOT1b, another Arabidopsis POT1 protein, in chromosome end protection. Finally, we showed that Arabidopsis thaliana has evolved a third POT1 protein, AtPOT1c, which contributes to both telomere length regulation and telomerase activity, and maintenance of the structure of the chromosome terminus. Thus, Arabidopsis has evolved a set of POT1 proteins that make distinct and novel contributions to telomere biology. Finally, we describe the identification and characterization of a novel Arabidopsis protein CIT1 (Critical for Integrity of Telomeres 1), and show that CIT1 deficiency leads to an immediate and profound telomere dysfunction and chromosome end deprotection. Altogether, these data provide new insight into plant telomereassociated factors and significantly improve our understanding of the overall architecture and evolution of telomeric complex in Arabidopsis.

Page generated in 0.0345 seconds