Genetic Mutations and Clinical Syndromes

This topic delves into the molecular basis of inherited genetic disorders, focusing on mutations that lead to clinical syndromes. It covers trinucleotide repeat expansion disorders such as Fragile X syndrome and Huntington's disease, chromosomal abnormalities like Down syndrome, and single-gene defects such as Dubin-Johnson syndrome. Students will learn about the mechanisms of gene silencing, anticipation, and the laboratory techniques used for genetic diagnosis, including PCR, Southern blotting, and karyotyping. For Zambian tertiary students in medical genetics, biomedical science, and laboratory technology, this knowledge is crucial for understanding the etiology of genetic diseases, genetic counseling, and the application of molecular diagnostics. Proficiency in this area prepares learners for professional examinations and careers in genetic testing, research, and clinical support services in Zambia's growing healthcare sector.