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Unformatted text preview: ial
environments
even
though
CC
individuals
 have
a
significant
fitness
advantage?
 
 
 
 
 Why
is
the
S
allele
found
mostly
in
African
populations?
 
 
 
 
 A
small
population
of
AA
individuals
live
on
an
island
without
malaria.
The
S
and
C
alleles
 arise
spontaneously
by
mutation
in
two
different
individuals.
Which
allele,
if
any,
is
more
 likely
to
go
to
fixation
in
this
population?
 3.
The
diagram
below
represents
a
linkage
map
of
4
loci
on
a
chromosome.
The
“X”
marks
a
 known
crossover
hotspot.

 
 1‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐2‐‐‐‐‐‐3‐‐‐‐‐‐X‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐4
 
 If
loci
1,3,
and
4
are
in
linkage
disequilibrium
with
a
mutant
allele
at
locus
2,
which
locus
 will
return
to
equilibrium...
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