Ch. 10 & 11 Review

4. the movement of alleles between populations
7. genetic drift that occurs after a small number of individuals colonize a new area
8. physical barriers that divide a population that prevents mating
11. the rise of two or more species from one existing species
12. In a population of frogs there are 5 homozygous dominant, 2 heterozygous, and 3 homozygous recessive for the green color trait. What is the allele frequency of the dominant green trait?
14. timing of reproductive periods that prevents mating
16. structures that are similar in function, but different in structure
17. genetic drift that occurs after an event that greatly reduces the population
18. this type of selection favors one extreme
20. the mechanism in which the best fit organisms in the environment survive and reproduce
22. scientists compare embryos to look for similar patterns and structures
23. What percent of the population of ladybugs is red if 13 are red and 9 are yellow?
24. a group of organisms that can reproduce and have fertile offspring

1. two or more species can evolve in response to changes in each other
2. structures that are similar in structure, but different in function
3. the father of evolution
5. change over time
6. process in which humans select traits through breeding
9. a pattern of evolution toward similar traits in unrelated species
10. structure that had a function in an early ancestor but does not anymore
13. a difference in a physical trait
15. elimination of a species from Earth
19. this type of selection favors both extremes
21. all alleles in a population
23. In a population of dogs, long ears are dominant. There a 2 homozygous long ear dogs, 4 heterozygous, and 2 homozygous short ear dogs. Calculate the allele frequency of the short ear trait.