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24 December 2018 | Story Leonie Bolleurs | Photo Anja Aucamp
Research possibilities of zebrafish exposed
Leading global genetics laboratories are replacing research on human and animal populations with zebrafish, says Prof Paul Grobler, Head of the UFS Department of Genetics.
The UFS Department of Genetics is on par with current research trends in terms of their zebrafish project. About a year has passed since they seriously started focusing on the potential of this tiny four-centimetre-long fish, and the possibilities are hugely exciting.

Looks are deceiving

Leading global genetics laboratories are replacing research on human and animal populations with zebrafish due to several fascinating reasons, of which the most profound is probably that the zebrafish share large portions of its genome with mammals. For genetics researchers this may make a lot of sense, but most people battle to see any resemblance between a six-foot-tall rugby player or 600 kg buffalo and a small, nearly transparent fish. It is in the detail, the researchers say.

Fast, effective, and visible

“The complete genome sequence of the zebrafish is known, and as much as 84% of genes known to be associated with human disease have zebrafish counterparts,” explains Head of Department, Prof Paul Grobler. Another advantage is the fast breeding rate and short generation time, and the fact that some research is ethically more justifiable when done on fish larvae rather than on adult mammals. The fact that zebrafish embryos are virtually transparent, also allow researchers to examine the development of internal structures without effort. Every blood vessel in a living zebrafish embryo is visible under a low-power microscope.

Multidisciplinary

Zebrafish provide research potential for many different study fields besides that of Prof Grobler and his team, Sue Rica Schneider and Dr Willem Coetzer. In the near future, they aim to have undergraduate students use zebrafish as a research model to develop a real sense of research and laboratory work. The Department of Chemistry are also initiating research on zebrafish housed in the Department of Genetics.

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News Archive

Academic produces another book
2009-12-01

 Academic, author and motivational speaker, Dr Michael van Wyk (pictured), has written another book titled Cooperative learning as a teaching strategy for the classroom: A practical guide for economics teachers.
His latest offering provides a sound theoretical framework and practical ways on how to implement the different cooperative learning techniques. It unpacks the practical aspects of the outcomes-based approach, the National Curriculum Statement for the Further Education and Training phase and cooperative learning techniques for the economics classroom.
This easy-to-read book offers a thorough introductory text for economics teachers and economics students, as well as lecturers and researchers.
“This theoretical and practical guide will support Economics teachers to present their subject in practical ways that are meaningful and learner centred,” he said.
“If this can be achieved, learners will engage effectively in the subject and an interest in the learning content may be evoked.”
The book covers the following aspects:
  • It introduces the foundations of the outcomes-based education approach (OBE) and the new curriculum model for South African schools.
  • It examines the theoretical underpinnings and practical application of cooperative learning as a teaching strategy.
  • It provides practical guidelines for application of cooperative learning techniques.
 
“This book gives an outline, in a constructive way, on how to apply the cooperative learning techniques such as Teams Games Tournaments (TGT), Student Teams Achievement Divisions (STAD), role-play, simulations, Economics quizzes, small group teaching and research projects in the classroom,” he said.
 
“These techniques have the potential to make a positive contribution to the enhancement of academic performances, development of social skills and an improvement of the learning skills of the learners.”
 
The book is designed as a theoretical and practical guide for Economics Education students, Economics teachers, Learning Area Economics and Management Science facilitators, Curriculum developers, Economics subject advisors, researchers and trainers; for the successful implementation of cooperative learning as a teaching strategy.
 
Dr Van Wyk is a staff member of the Department of Curriculum Studies in the Faculty of Education at the University of the Free State (UFS). He also serves on the board of the South African Foundation on Economics and Financial Education (SAFEFE).
Photo: Mangaliso Radebe

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