SME
Grade 9 Science
Evidence for evolution, population genetics and speciation
The main lesson, then each kind of problem it solves.
Evidence for evolution, population genetics and speciation
Main lesson
Allele frequencies from genotype counts
Use this for “A sample has 49 AA, 42 Aa and 9 aa. What are p and q?”
Homologous, analogous or vestigial?
Use this for “Which forelimb is not homologous to the others?”
Common ancestry on a cladogram
Use this for “Which two animals are most closely related?”
How bacteria become resistant to an antibiotic
Use this for “Why does overusing antibiotics lead to resistant bacteria?”
How one species becomes two
Use this for “Put the steps of speciation after a population is split in order.”
What changes allele frequencies?
Use this for “Which condition would change the allele frequencies in a population?”