Finding genes and testing
How the gene behind a disease is found, and the techniques that read DNA.
5 pages
- How disease genes are found: linkage, association and sequencingThree strategies find the genes behind diseases: tracking markers through families, comparing…
- DNA sequencingSequencing means reading the exact order of DNA bases; today you can read one gene, all exons…
- Polymerase chain reaction (PCR)PCR copies one chosen piece of DNA millions of times in a few hours; it underpins molecular…
- Southern, Northern and Western blotsBlots separate molecules by size in a gel, move them to a membrane and detect them with a probe…
- Molecular pathology: PCR, FISH, sequencing and liquid biopsyMolecular tests read the genes of a tumour or a microbe to confirm the diagnosis and choose the…
This section is an index: it gathers pages from Biochemistry, Pathology, Embryology and other sections without repeating them. Educational content; it does not replace a geneticist's assessment or genetic counselling.
Representative model, for educational purposes only.