Kelsi+and+Lindsay's+Ch.+16+Ques

1. **//__Q.__//** What is a bell curve?
 * //__A.__//** a graph of frequency of lengths in a population

2. **//__Q.__//** What do population geneticists use the gene pool for? //__**A.**__// to descripe the genetic information in a population

3. **//__Q.__//** What is alelle frequencey determined by?
 * //__A.__//** dividing the number of a certain allele by the total number of alleles

4. **//__Q.__//** What is immagration?
 * //__A.__//** movement of individuals into a population

5. **//__Q.__//** What is emmigration?
 * //__A.__//** movement of individuals out of a population

6. __//**Q.**//__ What is gene flow? __//**A**//__. genes going from one population to another

7. __//**Q.**//__ The selection of mate base on a similarity of charateristics is called what?
 * //__A.__//** assortative mating

8. __//**Q.**//__ What is sexual selection?
 * //__A.__//** an animal chooses its mate by the characteristics it likes

9. __//**Q.**//__ When does prezygotic isolation occur?
 * //__A.__//** presygotic isolation occurs before fertilization.

10. __//**Q.**//__ When does postzygotic isolation occur?
 * //__A.__//** postzygotic isolation occurs after isolation.

 Racheal Causer(: & Brooke Penick(: