11u bio div 04

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  • Rank – FamilyTaxon - Cervidae
  • 11u bio div 04

    1. 1. Phylogeny and Modern Taxonomy
    2. 2. PhylogenyHumans have family trees that go back for manygenerations to show our lineage and our ancestors.These family trees show how 2 people may be relatedto each other and by how many generations.
    3. 3. PhylogenyPhylogenetic trees share the same idea as familytrees. They show how species have grown apart(evolved) over time.
    4. 4. PhylogenyPhylogenetic trees share the same idea as familytrees. They show how species have grown apart(evolved) over time.
    5. 5. PhylogenyPhylogeny: the study of the evolutionary relatednessbetween and among species.
    6. 6. Phylogeny (Draw This)A phylogenetictree is oftenused to illustratetheserelationships.
    7. 7. PhylogenyPresent Branches are Many Common Years Ancestors Ago
    8. 8. Phylogeny: CladesA clade is a branch of a phylogenetic tree thatrepresents all of the organisms that share a singlecommon ancestor.
    9. 9. Phylogeny: CladesClades can be any size, and occur at branches inphylogenetic trees.
    10. 10. Phylogeny: CladesIdentify aclade in thistree.
    11. 11. Phylogeny: Clades
    12. 12. Phylogeny: Clades
    13. 13. Phylogeny: Clades
    14. 14. Phylogeny: Clades
    15. 15. Phylogeny: Clades
    16. 16. Phylogeny: Clades
    17. 17. Phylogeny: Clades
    18. 18. Phylogeny: Clades
    19. 19. Phylogeny: Clades
    20. 20. • To which other organism is Cervus elaphus most closely related? At what rank and taxon are they related?
    21. 21. Modern Taxonomy: Think. Pair. ShareWhat are the drawbacks of traditional taxonomy?- dichotomous keys may be ambiguous or subjective.- following a dichotomous key takes time.- mutations may lead to incorrect classification.
    22. 22. Modern Taxonomy: Think. Pair. ShareWhat are the drawbacks of traditional taxonomy?- different genetic structures may lead to similarphysical structures.- evolutionary relatedness is only a guess usingphysical features.
    23. 23. Modern Taxonomy: Think. Pair. ShareHow can all of these obstacles be overcome?
    24. 24. Modern TaxonomyHow can all of these obstacles be overcome?By collecting and comparing DNA samples of specimens,their identity and evolutionary relatedness can bedetermined efficiently and accurately.
    25. 25. DNA Barcoding

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