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Genetic Tests and Technologies, Study notes of Medicine

This document provides an overview of genetic tests and technologies, covering diagnostic, carrier, predictive, and prenatal testing, as well as paternity and identity testing. It explains the role of genetic testing in confirming diagnoses, informing management, and providing recurrence risks. The guide compares Sanger sequencing with next-generation sequencing (NGS), highlighting their uses, costs, and data analysis challenges. It also discusses the ethical implications of eugenics and contrasts it with the non-directive approach of genetic counselling. This resource is essential for understanding the applications and ethical considerations of genetic testing in clinical practice.

Typology: Study notes

2024/2025

Available from 03/12/2025

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charles-khama 🇮🇹

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3/12/25, 1:54 PM about:blank Genetic Tests and Technologies Genetic Tests and Technologies ‘Types of genetic test: 1. Testing for genetic conditions: 11 Diagnostic 0 Carrier d Predictive (1 Prenatal tests 2. Testing to clarify familial relationships: (1 Paternity testing 3. Genetic testing to determine identity: (1 Genetic finger printing Role of genetic testing: 1D To confirm a clinical diagnosis 2 To give information about prognosis 3 To inform management To allow predictive testing in close relatives 2 Carrier testing 3 To give accurate recurrence risks © Prenatal diagnosis SANGER SEQUENCING NEXT GENERATION SEQUENCING Uses PCR to amplify regions of interest followed by sequencing of products Usefil for single gene testing Single start point (primer) Single DNA fragment sequenced Can sequence whole human genome in one day Multi-gene panels; high throughput Library of DNA fragments Massively parallel sequencing High cost per gene Simple analysis; very accurate Low cost per gene Huge amounts of raw data to interpret; moderately accurate 113.