17 crossword thingy...

1234567891011121314151617
Across
  1. 3. Equilibrium If population is not evolving the allele frequencies in the gene pool do not change
  2. 5. Isolation Interbreeding populations develop different behaviors, such as different mating daces, songs, etc.
  3. 7. Clock Uses mutation rates in DNA to estimate how long ago two organisms shared a common ancestor
  4. 8. Selection form of natural selection in which individuals at the upper and lower ends of distribution curve have higher fitness than the middle of the curve
  5. 9. Effect A change in allele frequency that results from a small group starting a new population
  6. 10. Trait Trait controlled by two or more genes
  7. 11. Population whose members can breed and produce fertile offspring
  8. 12. Selection individuals near the center of a distribution curve have higher fitness than, either end of the curve
  9. 13. Gene Trait Trait controlled by one gene that has two alleles
  10. 14. Principle states allele frequencies in a population will stay in genetic equilibrium unless something causes them to change
  11. 16. Effect Change in allele frequency following a dramatic loss of population
Down
  1. 1. Pool All genes, that are present in a population at any one time
  2. 2. Selection individuals pick mates with certain heritable traits
  3. 3. Isolation When populations separated by a barrier, such as a river, mountain, or ocean
  4. 4. Isolation Separation of a species or population so that members can no linger interbreed
  5. 6. Formation of a new species
  6. 8. Selection Individuals at one end of the curve have higher fitness than the others
  7. 15. Frequency Number of times allele occurs in a gene pool
  8. 17. Isolation Populations that live in the same habitat reproduce at different times