In a monoecious
species, for a single locus with two
alleles A & a:
Let frequency of A
allele f(A) = p
Let frequency of a
allele f(a) = q
Let allele frequenices
in males & females be equal.
What are the expected
genotype
frequencies?
What are the
probabilities
of obtaining various gametic combinations?
prob.
of A from male & A from
female:
pm x pf = p2
prob.
of a from male & a from
female:
qm x qf = q2
prob.
of A from male & a from female,
or a from male & A from
female:
(pm x qf ) + (pf x qm
)
= 2pq
What is the result of the binomial expansion of p & q in males & females
(pm + qm) (pf + qf) = p2 + 2pq + q2
What are the areas of the four boxes in a Punnet Square?