Zero Copy
Mostrando 13-17 de 17 artigos, teses e dissertações.
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13. Germline Hypermutability in Drosophila and Its Relation to Hybrid Dysgenesis and Cytotype
In its hypermutable state, an unstable singed allele, snw, mutates in the germline to two other alleleic forms at a total frequency usually between 40 and 60%. In its stable state, the mutation rate of snw is essentially zero. Its state depends on an extrachromosomal condition indistinguishable from a property called cytotype previously studied as a componen
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14. The polychromatic Helitron landscape of the maize genome
Maize Helitron transposons are intriguing because of their notable ability to capture gene fragments and move them around the genome. To document more extensively their variability and their contribution to the remarkable genome structure variation of present-day maize, we have analyzed their composition, copy number, timing of insertion, and chromosomal dis
National Academy of Sciences.
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15. Production of poly(3-hydroxybutyrate) by fed-batch culture of filamentation-suppressed recombinant Escherichia coli.
Recombinant Escherichia coli XL1-Blue harboring a high-copy-number plasmid containing the Alcaligenes eutrophus polyhydroxyalkanoate synthesis genes could efficiently synthesize poly(3-hydroxybutyrate) (PHB) in a complex medium containing yeast extract and tryptone but not in a defined medium. One of the reasons for the reduced PHB production in a defined me
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16. Enhanced meiotic recombination on the smallest chromosome of Saccharomyces cerevisiae.
Chromosome I is the smallest chromosome in Saccharomyces cerevisiae and contains a DNA molecule that is only 250 kilobases (kb). Approximately 75% of this DNA molecule has been cloned. A restriction map for the entire DNA molecule from chromosome I was determined and most of its genetically mapped genes were located on this physical map. Based on the average
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17. Ethnic differences of polymorphism of an immunoglobulin VH3 gene.
The VH26 germline gene occupies two different loci, due to gene duplication, and is one of the most frequently expressed human immunoglobulin VH genes. This report identifies the alleles of each VH26 locus and describes distinct patterns of VH26 polymorphism in three ethnic groups. Oligonucleotide probes targeting VH26 were used in sequence-specific RFLP ana