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Biodiversity Storyline - Coggle Diagram
Biodiversity Storyline
Genetics
Gel Electrophoresis
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Can be used to determine paternity of an organism or what the organism actually is, among several other uses
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Pedigree
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Shows presence or absence of a trait as it relates to the relationship among parents, offspring, and siblings
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Gene pool/gene flow
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Genetic Diversity
Reproductive Isolation - Inability of a species to breed successfully with related species due to geographical, behavioral, physiological, or genetic barriers or differences
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Interbreeding
Refers to the breeding of individuals of different species, subspecies, or varieties of the same genus
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Examples include zonkey, liger, durum, wheat, etc.
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Evolution
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Artificial Selection: Process by which humans use animal and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males & females will sexually reproduce and have offspring together
Convergent Evolution: When 2 species with different ancestral origins develop similar characteristics
Divergent Evolution: When 2 species diverge from a common ancestor & develop different characteristics
Phylogenetic Tree
A visual representation of the relationship between different organisms, showing the path through evolutionary time from a common ancestor to different descendants
Show evolutionary relationships among a group of organisms
How it works
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As you move from the roots to the tips, you are moving forward in time
When a lineage splits (speciation), it is represented as branching on a phylogeny
Evidence of Evolution
Amino Acid Sequencing
Molecular similarities provide evidence for the shared ancestry of life. Comparisons can show how different species are related
Similarities & differences between the “same” gene in different organisms (a pair of homologous genes) can help us determine how closely related the organism are
Biogeography:
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(ie. The closer species are geographically, the more opportunities to mate and share genes.)
Fossil Record: Provide long-term evolutionary changes, documenting the existence of species that are now extinct
Comparative Anatomy:Anatomical features shared between organisms (including ones that are visible only during embryonic development) can help us determine how closely related the organisms are
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