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

can some one please tell what does the folowing lettersb
p
q p2

q2

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 p2

q2

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

p2 chance that p is present in both chromosome sets
q2 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
p2
q2
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-