Genetics

Study of heredity and variation in living organisms.

DNA and GenesMendelian InheritanceVariation and Mutation
Molecular GeneticsGenetic DisordersPopulation Genetics and Evolution
Genetic Testing and Personalized MedicineGenetically Modified Organisms (GMOs)Forensics and DNA Fingerprinting
Effective Note-Taking for GeneticsPracticing with Punnett Squares and ProblemsUsing Flashcards for Key Terms
DNA and GenesMendelian Inheritanc...Variation and Mutati...Molecular GeneticsGenetic DisordersPopulation Genetics ...Genetic Testing and ...Genetically Modified...Forensics and DNA Fi...Effective Note-Takin...Practicing with Punn...Using Flashcards for...
Advanced Topics

Population Genetics and Evolution

How Populations Change Over Time

Population genetics studies how gene frequencies change in groups of organisms over generations.

Key Concepts

  • Gene Pool: All the genes in a population.
  • Genetic Drift: Random changes in gene frequencies, especially in small populations.
  • Natural Selection: Traits that help survival become more common.

Evolution in Action

Over time, populations adapt to their environment, sometimes leading to new species.

Applications

  • Tracking the spread of diseases.
  • Conserving endangered species.
  • Understanding antibiotic resistance in bacteria.

The Big Picture

Population genetics connects the dots between genes, variation, evolution, and the diversity of life on Earth!

Examples

  • Antibiotic resistance spreads in bacteria populations due to natural selection.

  • Genetic drift causes rare traits to disappear in small island populations.

In a Nutshell

Population genetics explains how species adapt and evolve over time.

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Genetic Testing and Personalized Medicine