biology 16

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BIOLOGY

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·                                 1. Geneticists compare DNA base sequences among organisms and from this data determine a gene’s rate of evolution. Different genes have been found to evolve at different rates. 

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o                                                        – Explain why some genes might have faster rates of evolution than other genes as populations adapt to their environments, and give an example with your explanation.

 

 

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·                                 2.Species have been traditionally characterized as “primitive” and “advanced.” For example, mosses were considered to be primitive, and flowering plants advanced; crocodiles were primitive and mammals were advanced. Most biologists of today think it is incorrect to characterize any modern species as primitive.

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o                                                        Determine whether or not you believe it is incorrect to refer to any modern species as primitive, and explain why.

 
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