Destroyer #31

[yakuza]

Which statement is NOT an assumption for Hardy-Weinberg equilibrium?

a. No isolation
b. No net migration
c. No natural selection
d. No mutation
e. all are assumptions

I answered A (no isolation) and the answer turns out to be e (all are assumptions).


--Cliff's AP Bio says:
For Hardy-Weinberg equilibrium, the population must be isolated from other populations(no gene flow.

Can someone explain this

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[happyasaclam88]

all of the possibilities are types of gene flow - hardy-weinberg has to have an unchanging gene pool, which means no migration, no selection, etc etc. the alleles have to stay at the same frequency.

 

[TheWiredNerv]

This is true. Hardy-Weinberg is further proof of evolution since it shows how allele frequencies can change in a population.

 

[OMFS08]

Which statement is NOT an assumption for Hardy-Weinberg equilibrium?

a. No isolation
b. No net migration
c. No natural selection
d. No mutation
e. all are assumptions

I answered A (no isolation) and the answer turns out to be e (all are assumptions).


--Cliff's AP Bio says:
For Hardy-Weinberg equilibrium, the population must be isolated from other populations(no gene flow.

Can someone explain this

Ok so for Hardy-Weinberg principle to apply the conditions have to be Ideal meaning we are assuming no mutation is occurring, no natural selection is present, no net migratin of species for obvious reasons (gene flow), and finally no isolation. When it says no isolation it is referring to isolation of genes from reproductive pool. So for conditions to be ideal you must give each gene in the gene pool an equal opportunity at selection for reproduction. If you are isolating a particular gene, then conditions are no longer ideal! Hope this makes sense. Just know isolation is referring to genes within the population not inter-populational.

 

[happyasaclam88]

I