Unit 1

• A genotype is the genetic makeup of an organism.
• Phenotype is the genetic makeup expressed
• The types of alleles are dominant or reccessive
• What is the defintion of species

  Members of the same species can interbreed and produce fertile offspring
• What is a population?

  Members of the same species that likely to encounter each other thus can interbreed
• The gene pool is all the alleles for every gene in a population
• Population genetics is the study of alleles and genotypes in a population
• Evolution is simply the change in allele frequencies in a population over time.
• What kind of changes cause evolution

  • Changes in alleles within populations