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Bio 182 Evolution Questions With Correct Answers

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BIO 182 EVOLUTION QUESTIONS WITH CORRECT ANSWERS

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clade


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a group of organisms believed o have evolved from a common ancestor




Single-gene variation.


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A genetic difference in color in the two-spot ladybug, Adalia
bipunctata,results from variation in a single gene.




If a population is in Hardy-Weinberg equilibrium

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Allele frequencies will not change from one generation to the next.




paraphyletic group


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contains some but not all of the descendents of a common ancestor,
polyphyletic groups that do not include the last common ancestor of the
group




genetic polymorphism


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Within a population, a single gene has more than one allele (AA, Aa, aa)
natural selection and genetic drift destroys it




Taxonomy


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the scientific study of naming defining and classifying groups of biological
organism based on shared characteristics

, plesiomoprhy


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is an ancestral trait shared by tow or more taxonomy (plesiomorphic
character inherited form a common ancestor that can appear anywhere in a
tree, for example humans have mammary glands, but so do all other
mammals, not useful)




field of phylogenetic...


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the field of phylogenetic (systematics) attempts to recreate the family tree
of the living creatures based upon homology (shared characteristics)




Adaption


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A heritable trait that helps an organism's survival and reproduction in its
environment.




biological species concept


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