Unit 10 Review (part 2)

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Unit 10 Review (part 2)
2014-04-02 02:28:48
Biology enriched common core HHS

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  1. reminants or remains of organisms that lived long ago
  2. body parts that are similar in structure but may differ in functionality
    Homologous Structures
  3. Study of developmet from embryo to adult hood
    comparative embryology
  4. comparing bodily fluids like hemoglobin or blood
    Molecular biology or biochemistry
  5. comparing where an organism lives or where it's ancestors lived
  6. comparing body structures like jaws, skulls, teeth and bones
    comparative anatomy
  7. humans choosing desirable traits of domesticated organisms to breed
    selective breeding or artificial selection
  8. the entire collection of alleles or genes among a population at any one time
    gene pool
  9. small-scale changes in allele frequencies over generations of time
  10. 3 things that can cause genetic variation in organisms that reproduce sexually
    independent assortment, crossing over, random fertilization
  11. sexual repro alone will not change the gene pool without other factors operating
    Hardy-Weinberg equilibrium
  12. p^2 represents
    Frequency of homozygous dominants
  13. 2 pq represents
    Frequency of heterozygotes
  14. q^2 represents
    Frequency of Homozygous recessives
  15. define an organisms "fitness"
    the contribution the individual makes to the gene pool of the next generation relative to other individuals
  16. 3 main causes of evolutionary change within microevolution
    • natural selection
    • genetic drift
    • gene flow
  17. when the genetic make up of a small icolated population is not likely to be the same as the original population
    bottleneck effect
  18. a cause of genetic drift attributable to colonization individuals from a parent population
    founder effect
  19. the type of environmental impact that favors intermediate phenotypes in relatively stable environments
    Stabilizing selection
  20. this type of selection shifts the overall make up of the population by acting against individuals at one of the phenotypic extremes. Most common during periods of environmental change or when individuals migrate to new habitats with different conditions
    Directional selection
  21. environmental conditions are varied in a way that favors both the extremes in phenotypic expression
    disruptive selection
  22. Differences between males and females is called
    sexual dimorphism