Ch5 crossword

4. (Two words.) The differential success (survival and reproduction) of individuals within a population
7. (Two words.) The movement of genetic information among populations
9. (Two words.) A change in allele frequencies (may also change genotype frequencies) because of random chance
13. A population adapted to its unique local environmental conditions
16. (Two words.) The ability of one genotype to give rise to different phenotypes under different environmental conditions
18. Individuals mate with other members of the population who are more closely related to them than expected by random chance
20. Any heritable behavioral, morphological, or physiological trait that has evolved through the process of natural selection such that it maintains or increases the fitness of an organism under a given set of environmental conditions
21. (Two words.) The sum of all genetic information (all alleles) across all individuals in a population

1. Alternative forms of the same gene
2. Encodes the information needed to produce an RNA molecule
3. The proportionate contribution made by an individual to future generations relative to other individuals in the same population
5. (Two words.) Individuals in a population choose mates based on their phenotype, which reflects their genotype
6. Changes in a population of organisms over time
8. (Three words.) The set of phenotypes expressed by a single genotype across a range of environmental conditions.
10. Alleles present at each gene within an organism’s genome
11. A local population of interbreeding individuals
12. A heritable change in a gene or a chromosome
14. All of the DNA in a cell
15. The form of selection where the mean phenotype has higher fitness than the phenotypes at either end of the distribution
17. The appearance of an organism for a particular characteristic
19. A measurable change in a phenotypic character or characters over a geographic region