Index Catalog // ScholarsArchive@OSU

Influence of chelating agents on cytological exchanges and genetic recombination in Zea mays L.

Creator:: Jones, Donald Dean
Abstract:: The present investigation with the chromosomes of Zea mays was conducted to determine: (1) the effects of chelating agents on the process of cytological exchange, and (2) the effects of chelating agents on genetic recombination. To ascertain the influence of chelating agents on cytological exchange, four known heterozygolis paracentric inversion...
Resource Type:: Dissertation
Full Text:: and genetic recombination in Zea mays L. AN ABSTRACT OF THE THESIS OF DONALD DEAN JONES for the

The relationship between x-ray induced teratogeny and chromosome aberrations in golden hamster embryos

Creator:: Jones, William Elvin
Abstract:: The relationship between x-ray induced chromosome aberrations and x-ray induced embryonic abnormalities was studied. Golden hamsters were irradiated during four stages of gestation: the blastocyst stage, 4.5 days post-copulation; the primitive streak stage, 6.5 days post-copulation; the organogenesis stage, 9.5 days post-copulation; and the period of fetal growth, 11.5 days...
Resource Type:: Dissertation
Full Text:: chromosome aberrations in golden hamster embryos AN ABSTRACT OF THE THESIS OF WILLIAM ELVIN JONES for the

Effects of radiation on selection progress in mice

Creator:: Womack, James Ernest
Abstract:: The effects of x-irradiation on quantitative genetic traits was investigated by comparing the response of irradiated mice to selection for litter size and 28-day weight with the response to selection for the same two traits in non-irradiated lines. Irradiated lines were maintained at three levels of x-irradiation, 25 r, 50...
Resource Type:: Dissertation
Full Text:: Frakes, Frederick L. Hisaw, Jr., D. L. MacDonald and Jesse F. Bone are gratefully acknowledged. These

Electrocardiograms and related variables of dwarf beef cattle

Creator:: Pinjani, Moti, 1939-
Abstract:: Electrocardiograms from 12 compressed male (CM), 16 compressed female (CF), ten synthetic compressed female (SCF), nine brachycephalic female (BF), and 15 dolichocephalic female (DF) dwarfs from Davis, California, taken in the scapular lead S-II (prescapular position positive and right forelimb negative) were analyzed, The data on dwarf electrocardiograms were compared...
Resource Type:: Dissertation
Full Text:: char e of major Redacted for Privacy J f Department o t) Animal Science Redacted for Privacy Dean

Some genetic and environmental factors influencing the weaning weights of southwestern range cattle

Creator:: Pahnish, O. F. (Otto Floyd), 1920-
Resource Type:: Dissertation
Full Text:: gaining ability whi le the older cows were not. !!!! Influence 2.f.. ~~ Weaning Weights The weaning

Genetic and physiological relationships of growth hormone and growth in goats

Creator:: Simms, Danny Dale
Abstract:: An F₁ population resulting from mating pygmy and normal goats (local commercial breeds) was crossed to give an F₂ population. Analysis of wither height and body weight indicated that the F₂ population was intermediate between the parental types (pygmy and normal) with little overlap of phenotypic values for body size...
Resource Type:: Dissertation
Full Text:: privacyAbstract approved: D14'. :Ralph Bogart An F 1 population resulting from mating pygmy and normal goats

Effectiveness of index and elite selection methods

Creator:: Douglass, Larry W.
Abstract:: Mice were used to compare the index and elite selection methods for simultaneous selection of four traits. Selection was for litter size, birth weight, weaning weight and post-weaning gain. Progress was evaluated by examining total phenotypic merit. The standard deviations from the cycle mean for the four traits were summed...
Resource Type:: Dissertation

Actual and predicted response to selection on maternally influenced traits in the mouse

Creator:: Lind, Ronald Egnard
Abstract:: An experiment was conducted to determine if selection from standardized litters would be effective in separating lines of mice selected for increased and decreased litter weight at 14 days of age, and if response to selection on this maternally influenced trait could be accurately predicted. Data were collected on litter...
Resource Type:: Dissertation
Full Text:: committee members, Dr. Ralph Bogart, Dr. Rodney V. Frakes, Dr. F. L. Hisaw, Dr. Roger G. Petersen, Dr

Genetics of sheep transferrins as determined by disc electrophoresis

Creator:: Nix, Carroll Eugene
Abstract:: A total of 902 plasma samples from the Rambouillet, Targhee, Columbia, Lincoln, and Suffolk breeds of sheep were analyzed for transferrin type by disc electrophoresis. Six transferrin types, Tf[superscript A], Tf[superscript B], Tf[superscript C], Tf[superscript p], Tf[superscript E], and Tf[superscript P], were found in the Rambouillet, Targhee, and Columbia breeds...
Resource Type:: Dissertation
Full Text:: appreciated. Gratitude is expressed to committee members Dr. R. R. Becker, Dr. Paul Roberts, Dr. F. L. Hisaw

Estimates of combining abilities, heterotic effects and phenotypic correlations among in-bred lines of beef cattle and their line-crosses

Creator:: Humes, Paul Edwin
Abstract:: The investigations were based on a complete diallel cross among three inbred lines of Hereford cattle. Records of Angus calves born during the same period were used to obtain more accurate estimates of environmental effects and to determine breed differences among the various traits included in the study. Estimates of...
Resource Type:: Dissertation
Full Text:: members Dr, Rod V. Frakes, Fredrick L. Hisaw, Jr. and W. R. Furtick for the time and competent advice

ScholarsArchive@OSU

Influence of chelating agents on cytological exchanges and genetic recombination in Zea mays L.

The relationship between x-ray induced teratogeny and chromosome aberrations in golden hamster embryos

Effects of radiation on selection progress in mice

Electrocardiograms and related variables of dwarf beef cattle

Some genetic and environmental factors influencing the weaning weights of southwestern range cattle

Genetic and physiological relationships of growth hormone and growth in goats

Effectiveness of index and elite selection methods

Actual and predicted response to selection on maternally influenced traits in the mouse

Genetics of sheep transferrins as determined by disc electrophoresis

Estimates of combining abilities, heterotic effects and phenotypic correlations among in-bred lines of beef cattle and their line-crosses

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