Now showing items 1-10 of 66
Investigation of leptin genotypes and economically important dairy traits in jersey cows.
Dairy farming is one of the most important agricultural industries in South Africa, and thus improving the performance of dairy cows, with respect to economically important dairy traits, would be beneficial. Selection ...
Investigation of the utilization of microsatellites for fingerprinting in three endangered southern African crane species.
Cranes are large elegant birds that occur on all continents of the world except for South America and Antarctica. Of the fifteen species of crane worldwide, three predominantly occur in southern Africa; the Wattled crane ...
The presentation and interpretation of arrow symbolism in biology diagrams at secondary-level.
The literature contains conflicting ideas about the effectiveness of diagrams, and their constituent symbolism as teaching and learning tools. In addition, only limited research has been specifically conducted on the ...
Computer simulation of marker-assisted selection utilizing linkage disequilibrium.
The face of animal breeding has changed significantly over the past few decades. Traditionally, the genetic improvement of both plant and animal species focussed on the selective breeding of individuals with superior ...
Individual identification and parentage analysis of Struthio camelus (ostrich) using microsatellite markers.
Ostrich (Struthio camelus) breeding is a well-developed industry in South Africa. However, successful genetic management has yet to be implemented. Parentage in colony breeding ostriches is unknown, where for a given ...
The influence of ionic strength on the kinetics of selected enzymes.
pH studies are used to gain insight into chemical mechanisms of enzyme catalysed reactions. However, perhaps the most important practical point that is often overlooked in pH studies is control of the ionic strength of ...
Characterization of the immunity factor in producer self protection against Leucocin A.
Lactic acid bacteria produce pediocin-like bacteriocins designated as Class Ha. These antimicrobial peptides are antagonistic against Listeria monocytogenes and other closely related Gram-positive bacteria Self-protection ...
Induction of autoantibodies to cathepsin L as a step towards an anti-cancer vaccine.
Cancer is a disease that is caused by mutations in somatic cells. Metastasis is the major cause of death from cancer and often complicates treatment. Malignant tumours secrete degradative enzymes such as cathepsin L which ...
Bioremediation of creosote-contaminated soil by microbial intervention..
No abstract available.
Changes in endosome-lysosome pH accompanying pre-malignant transformation.
The mechanisms by which altered processing, distribution and secretion of proteolytic enzymes occur, facilitating degradation of the extracellular matrix in invasive and metastatic cells, are not fully understood. Studies ...