Brooke+and+Rachel's+Ch.+16+Ques

//population is small so the allele frequencies in a populaiton change as a result of random events.// //allele frequency.//
 * 1.) What is genetic drift?**
 * 2.) What frequency divides the number of a certain allele by the total number of allele types?**
 * 3.) What term do population geneticists use to describe the total genetic information available in a population?**

//number of individuals with a particular phenotype divided by the total number of induvuduals in the population.// //imigration.// //trait having the highest fitness.//
 * 4.) What is a phenotype frequency?**
 * 5.) What is the movement of individuals into a population?**
 * 6.) In what type of selection do individuals with the average form of a trait have the highest fitness?**
 * 7.) What is the selection of a mate based on similarity of characteristics?**


 * 8.) What is an example of sexual selection?

9.) What is the difference between prezygotic isolation and postzygotic isolation?

10.) What is a punctuated equilibrium?**