3.4 Inheritance


Here are experiments our science specialists have selected to support the IB* topic.

Genetics of Drosophila

Experiment #7 from Advanced Biology with Vernier

In this experiment, you will

  • Learn basic handling and culture techniques for working with Drosophila.
  • Apply concepts and principles of Mendelian inheritance patterns.
  • Diagram monohybrid, dihybrid, and sex-linked crosses.
  • Gain experience sorting, sexing, and crossing Drosophila through two generations.
  • Perform a chi-square statistical analysis of experimental results.

Population Genetics and Evolution

Experiment #8 from Advanced Biology with Vernier

In this experiment, you will

  • Investigate a genetically inherited trait and apply the Hardy-Weinberg Principle to a population.
  • Calculate allele frequencies and genotypes for a population using the Hardy-Weinberg formula.
  • Compare allele frequencies within the classroom to North American averages.
  • Demonstrate the stability of allele frequencies over five generations in an ideal Hardy-Weinberg population.
  • Examine the effects of natural selection, heterozygous advantage, and genetic drift on allele frequencies in a simulated mating exercise.

Educational Standard
International Baccalaureate (IB)
3. Genetics

* The IB Diploma Program is an official program of the International Baccalaureate Organization (IBO) which authorizes schools to offer it. The material available here has been developed independently of the IBO and is not endorsed by it.