# Hardy weinberg's princple - (Sep/01/2008 )

can some one please tell what does the folowing lettersb

p

q p^{2}

q^{2}

and 2pq

stand for?

-princess_riya-

QUOTE (princess_riya @ Sep 1 2008, 10:15 AM)

can some one please tell what does the folowing lettersb

p

q p

q

and 2pq

stand for?

p

q p

^{2}q

^{2}and 2pq

stand for?

p,q allele frequencies for example if there are only 2 possible alleles (p and q) and they are equally common that would be 0.5 (=50%) for both

p

^{2}chance that p is present in both chromosome sets

q

^{2}chance that q is present in both chromosome sets

both would be 0.25 in our example (=0.5x0.5=25%)

2pq change that this trait is heterozygous so one chromosome set has p and the other one has q

why is it times 2? because it can either be pq or qp which is irrelevant (in most cases)

so for our example it would be 0.5 (2x0.5x0.5=50%)

-coastal-

hey im sorry my question was a little bit mistyped

i want to know what do these elements stand for in the Hardy- Hardy Weinberg's equilibrium?

p

q

p^{2}

q^{2}

2pq

no examples needed, i know how to do the problem n thx for helping but I want the definitions,

its a question in my exam paper.

ok now? i hope my querry is clearer now?

n thx again for the explanation

-princess_riya-

QUOTE (princess_riya @ Sep 2 2008, 06:49 AM)

i want to know what do these elements stand for in the Hardy- Hardy Weinberg's equilibrium?

but thats what I

*did*explain

-coastal-

Also, try asking in the homework forum (for all the questions you posted today) as these questions are clearly homework!!!

-bob1-

QUOTE (bob1 @ Sep 3 2008, 12:07 PM)

Also, try asking in the homework forum (for all the questions you posted today) as these questions are clearly homework!!!

its not homework but questions that came in exam,

n Coastal, our teaher is telling something quite different, that doesnt go in my head so im sorry if I offended you.

-princess_riya-