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Science-Related Homework Help High School Level Science Topic started by: rk90 on Sep 16, 2012



Title: is it possible for a population to be in hardy-weinberg equilibrium?
Post by: rk90 on Sep 16, 2012
wha i mean is are natural populations ever in hardy weinberg equilibrium?


Title: is it possible for a population to be in hardy-weinberg equilibrium?
Post by: riza on Sep 16, 2012
typically no. H-W equilibiruim implies that no evolution occurs. Most populations do not meet the 5 requirments.  Most population have one of  the follwing:
    * mutation
    * gene flow
    * genetic drift
    * nonrandom mating
    * natural selection


Title: is it possible for a population to be in hardy-weinberg equilibrium?
Post by: juliabreslin on Sep 16, 2012
No.

All of the conditions needed to maintain a HW equilibrium can be met (random breeding, large population, etc) except for one: no Natural Selection.  Natural Selection is ALWAYS at work.


Title: is it possible for a population to be in hardy-weinberg equilibrium?
Post by: jules78245 on Sep 16, 2012
Nope.  The Hardy-Weinberg equilibrium is a mathematical model.  Real populations are always subject to one or more of selection, nonrandom mating, genetic drift, occasional significant mutation, gene flow (via immigration) and the like.