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Articles 1 - 12 of 12
Full-Text Articles in Genetics and Genomics
Dispermic Origin And Clinical Outcome Of Three Complete Hydatidiform Moles With 46,Xy Karyotype, U. Surti, A. E. Szulman, S. O'Brien
Dispermic Origin And Clinical Outcome Of Three Complete Hydatidiform Moles With 46,Xy Karyotype, U. Surti, A. E. Szulman, S. O'Brien
Biology Faculty Articles
Three new cases of complete, classic hydatidiform mole with a 46,XY karyotype are described. They originated by dispermy as demonstrated by chromosome and enzyme analyses. Levels of human chorionic gonadotropin decreased to normal spontaneously within a short time, indicating a benign course in these three cases. Of a total of 18 cases reported to date, postoperative clinical information was available for 10 patients. Two of these 10 patients had a malignant course with lung metastases. It is of theoretical and clinical importance to establish the magnitude of the risk of malignancy for hydatidiform mole with a 46,XY karyotype. © 1982.
Cole1 Copy Number Mutants., Londa Schmidt, Joseph Inselburg
Cole1 Copy Number Mutants., Londa Schmidt, Joseph Inselburg
Dartmouth Scholarship
A deletion mutant of the colicin E1-derived plasmid, pDMS6642, exhibited an approximately fourfold increase in copy number. We subsequently isolated hydroxylamine-induced mutants of that plasmid that had a further increase in copy number. Analysis of them suggests that the increased copy number of pDMS6642 is associated with transcriptional readthrough from a Tn3 transposon into the region of ColE1 containing information that influences plasmid replication. The hydroxylamine mutation in one copy number mutant appeared to increase the plasmid copy number by stimulating readthrough transcription from the Tn3 transposon into the ColE1 replication control region, whereas the other hydroxylamine mutation acts by …
Evidence For The Horizontal Acquisition Of Murine Akr Virogenes By Recent Horizontal Infection Of The Germ Line, Stephen J. O'Brien, Janet L. Moore, Malcolm A. Martin, James E. Womack
Evidence For The Horizontal Acquisition Of Murine Akr Virogenes By Recent Horizontal Infection Of The Germ Line, Stephen J. O'Brien, Janet L. Moore, Malcolm A. Martin, James E. Womack
Biology Faculty Articles
Several recent reports have established the biological and molecular genetic similarity between the endogenous AKV virus of strain AKR, and an N-ecotropic endogenous virus found in the genome of feral Japanese mice, Mus musculus molossinus. The similarities are so striking as to suggest a common origin of these viruses, which are present in some, but not all, inbred mouse strains. The virogenes of AKR mice may have been acquired by either: (a) common descent of AKR (and other AKV+ strains) from a common ancestor of AKR and molossinus animals, or (b) horizontal germ line infection of the AKR …
Genetically Controlled Variation Of "Acid" Beta-Galactosidase Detected In Rattus Norvegicus By Isoelectric Focusing, T C Douglas, K A Kimmel, P E Dawson
Genetically Controlled Variation Of "Acid" Beta-Galactosidase Detected In Rattus Norvegicus By Isoelectric Focusing, T C Douglas, K A Kimmel, P E Dawson
Student and Faculty Publications
Two genetically variant forms of rat "acid" beta-galactosidase were found to differ in isoelectric point and pH dependence, but not in thermostability or sensitivity to inhibition by p-mercuribenzoate (PMB). The results of two backcrosses and an intercross indicated that the isoelectric focusing phenotypes are controlled by two codominant alleles at a single autosomal locus, for which we propose the name Glb-1. No significant linkage between Glb-1 and albino (LG I), brown (LG II), or hooded (LG VI) was observed. Strain-specific differences in total levels of kidney beta-galactosidase were detected, but it is not yet known whether the variation is controlled …
Synthesis Of Low Molecular Weight Heat Shock Peptides Stimulated By Ecdysterone In A Cultured Drosophila Cell Line., Robert C. Ireland, Edward M. Berger
Synthesis Of Low Molecular Weight Heat Shock Peptides Stimulated By Ecdysterone In A Cultured Drosophila Cell Line., Robert C. Ireland, Edward M. Berger
Dartmouth Scholarship
Treatment of Schneider's line 3 Drosophila cells with the steroid hormone ecdysterone rapidly stimulated the synthesis and accumulation of the polypeptide previously designated p7 [Berger, E. M., Ireland, R. C. & Wyss, C. (1980) Somatic Cell Genet. 6, 119-129]. In this report, p7 is identified as the 23,000-dalton heat shock polypeptide (hsp23). In addition to hsp23, the synthesis of the low molecular weight heat shock polypeptides hsp22, hsp26, and hsp27 was also stimulated by ecdysterone, although to different extents. Hybridization of a nick-translated genomic clone containing the hsp23 gene to a total RNA blot showed that ecdysterone stimulation of hsp23 …
Genetic Adaptation In Relation To Animal Welfare, R. G. Beilharz
Genetic Adaptation In Relation To Animal Welfare, R. G. Beilharz
Genetics Collection
In this essay I outline the processes of adaptation of animals and of animal populations and discuss their relevance to the problem of animal welfare. Because "animal welfare" has many different aspects including philosophical, ethical, and biological, it is important to examine some of the fundamental issues that underly the concept. Hence, in this essay, I comment on how people come to "know," how information accumulates, and how what we know influences our actions. I also discuss the biological information that is relevant to animal welfare. It is my hope that, when this topic has been placed within a broader …
An Experiment In Biomass Production: Results From Three Consecutive Harvests Of Cottonwood Alder, Constance A. Harrington, Dean S. Debell, Robert F. Strand
An Experiment In Biomass Production: Results From Three Consecutive Harvests Of Cottonwood Alder, Constance A. Harrington, Dean S. Debell, Robert F. Strand
Aspen Bibliography
No abstract provided.
Biomass Equations For Ten Major Tree Species Of The Prairie, T. Singh
Biomass Equations For Ten Major Tree Species Of The Prairie, T. Singh
Aspen Bibliography
No abstract provided.
Understory-Overstory Vegetation Relationships: An Annotated Bibliography, Peter F. Ffolliott, Warren P. Clary
Understory-Overstory Vegetation Relationships: An Annotated Bibliography, Peter F. Ffolliott, Warren P. Clary
Aspen Bibliography
No abstract provided.
Wildlife--Wild Death: Kenya's Man-Animal Equation, Norman N. Miller
Wildlife--Wild Death: Kenya's Man-Animal Equation, Norman N. Miller
Aspen Bibliography
Kenya's game laws, in comparison to those of ancient England, are tame and mild.
The Extent And Characteristics Of Low Productivity Aspen Areas In Minnesota, Garhard K. Raile, Jerold T. Hahn
The Extent And Characteristics Of Low Productivity Aspen Areas In Minnesota, Garhard K. Raile, Jerold T. Hahn
Aspen Bibliography
No abstract provided.
Wildlife Conservation In The Soviet Union, Michael L. Wolfe, Douglas R. Weiner
Wildlife Conservation In The Soviet Union, Michael L. Wolfe, Douglas R. Weiner
Aspen Bibliography
No abstract provided.