Mapping Genes to Traits in Dogs Using SNPs

New Review

Genetic analysis has gone to the dogs! Learners use real DNA information collected from dog saliva to study the relationship between genotypes and phenotypes. They analyze alleles to determine correlations to coat color, length, and texture. An optional activity takes it one step further by calculating the strength of correlation using a chi-square analysis. 

3 Views 2 Downloads NGSS: Designed
Instructional Ideas

  • Have pupils work in pairs to complete the activity and then compare conclusions with another group to encourage discussion
Classroom Considerations

  • Requires an understanding of the relationship between genotype and phenotype
  • Allow time prior to the activity to prepare necessary materials
Pros

  • Adaptable to different levels of instruction
  • Emphasizes key scientific vocabulary throughout the lesson
Cons

  • None