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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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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.
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Showing 581 to 590 of 1727 (0.039 seconds)Spelling suggestions: "subject:"angiology - genetics"" "subject:"angiology - kenetics""
| 581 |
THE INVOLVEMENT OF RNA IN THE INITIATION OF DNA REPLICATIONUnknown Date (has links)
Source: Dissertation Abstracts International, Volume: 35-08, Section: B, page: 3741. / Thesis (Ph.D.)--The Florida State University, 1974.
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| 582 |
A STUDY OF THE RIBOSOMAL-RNA GENES AND OTHER REPETITIVE DNA OF SACCHAROMYCES CARLSBERGENSISUnknown Date (has links)
Source: Dissertation Abstracts International, Volume: 34-02, Section: B, page: 0537. / Thesis (Ph.D.)--The Florida State University, 1973.
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| 583 |
Gene transfer through asymmetric somatic hybrids: Extent and predictability of donor chromosome eliminationUnknown Date (has links)
To produce highly asymmetric somatic hybrids, in order to transfer discrete traits between plant species, donor-chromosome elimination must be better understood. We examined the effects of radiation dose and time in culture on the elimination of donor genetic material. Mesophyll protoplasts of kanamycin-resistant donor Nicotiana plumbaginifolia were gamma-irradiated and fused with recipient mesophyll protoplasts of N. tabacum bearing the sulfur mutation (Su, phenotype yellow). Hybrid calli, selected on kanamycin-medium, were analyzed for N. plumbaginifolia genetic material by either dot-blot hybridization using a N. plumbaginifolia-specific repetitive DNA sequence probe, or by scoring the fraction of green hybrid calli (green = retained donor wild type allele). Both assays showed that the elimination of donor DNA increased with radiation dose, from 5 to 50 krad. At 50 krad, about one third of the hybrids lost 85% or more of the donor genome, which represents the retention of three, or fewer, donor chromosomes. In addition, donor DNA elimination continued for the first 12 months in culture. / Alternatively, BrdU (0.1 to 10 $\mu$M) followed by UV light was used to produce asymmetric hybrids. We demonstrated by dot-blot analysis or GUS expression, that both 10 $\mu$M BrdU with 5 min UV light treatment and 20-krad irradiation resulted in 50% donor DNA elimination. Furthermore, by combining gamma irradiation with BrdU/UV light treatment, we observed that donor DNA elimination in three month old calli exceeded that of the 50-krad treatment group at twelve months. However, in all above treatment groups, the extent of donor DNA elimination was highly variable. / Source: Dissertation Abstracts International, Volume: 56-04, Section: B, page: 1854. / Major Professor: George W. Bates. / Thesis (Ph.D.)--The Florida State University, 1995.
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| 584 |
Studies on the control of carcinoembryonic antigen (CEA) gene family expression in a differentiating colon carcinoma cell lineHauck, Wendy January 1993 (has links)
No description available.
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| 585 |
Structural and functional analysis of genes involved in the heme biosynthetic pathway of Saccharomyces cerevisiaeDi Flumeri, Celestino. January 1997 (has links)
No description available.
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| 586 |
Multiple isoforms of rat DNA methyltransferase are encoded by the cytosine DNA methyltransferase gene and differentially expressedDeng, Jing, 1966- January 1999 (has links)
No description available.
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| 587 |
Transcriptional regulation of the human b-amyloid precursor protein geneBourbonnière, Martin. January 1997 (has links)
No description available.
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| 588 |
Functional genomic mapping of a centromeric mammalian origin of DNA replication and identification of its minimal functional sequencePelletier, Richard. January 1997 (has links)
No description available.
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| 589 |
Molecular and genetic analysis of lithium responsive bipolar disorderTurecki, Gustavo. January 1999 (has links)
No description available.
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| 590 |
Murine Hoxd4 : characterization of the transcription unit and genetic interactions with retinoic acid receptorsFolberg, Adriana. January 1998 (has links)
No description available.
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