Genome sequencing gives researchers and health professionals information about the genetic variation an individual carries. This lesson explores how genomic information can help assess disease risk and guide medication choices, while also considering the limits of these applications.
Individual-level disease-risk prediction uses genome analysis to screen people who are currently healthy. If a genetic risk is identified, health professionals may recommend steps such as lifestyle changes, closer monitoring, or preventive medication before symptoms develop.
All flashcards
Individual-level genomic disease-risk prediction
Using a person's genomic information to estimate disease probability and consider prevention or monitoring.
Single-gene disorder
A disorder strongly associated with a defect in one gene.
Toxicogenomics
Using genomic information to investigate potentially harmful effects of substances, including drugs.
Metagenomics
The study of collective genomes from multiple species in an environmental niche.
Microbial genomics and biofuels
Genomic analysis can identify microbial genes and capabilities that may support biofuel development.
Quiz questions
Why can metagenomics reveal microbial diversity that pure-culture methods may miss?Answer: It analyzes community genetic material without requiring each organism to grow separately.
What can changes in gene expression after drug exposure help researchers identify?Answer: Early indications of possible toxic effects, including disrupted cell-growth control.
Why can rapidly changing mitochondrial DNA help researchers study evolutionary relationships?Answer: Its mutation patterns can provide evidence for comparing lineages over time.
How can genomic data contribute to crop improvement?Answer: It can link genes or gene signatures with useful traits to guide breeding.
What can genetic markers contribute to a forensic investigation?Answer: They can provide genetic evidence that helps assess links between biological samples.
Based on Biology 2e by Mary Ann Clark, Matthew Douglas, Jung Choi (OpenStax), licensed CC BY 4.0. Adapted into a summary, flashcards and quizzes.