Questions for discussion 4 (key)

Differenthabitatsonthedifferentislands

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Unformatted text preview: ble
to
have
children.
 d.
The
human
species
will
have
evolved
because
this
mutation
will
be
passed
on
to
 your
children.
 e.
This
mutation
does
not
affect
human
evolution
because
it
will
not
be
passed
on
to
 your
offspring.
 
 22.
Natural
selection
acts
directly
on
the

 a.
genotype
to
produce
new
mutations.
 b.
phenotype
to
produce
new
muations.
 c.
genotype
to
favor
existing
mutations.
 d.
phenotype
to
favor
traits
due
to
existing
mutations.
 e.
genotype
to
inhibit
new
mutations.
 
 23.
Species
that
are
in
the
same
_________

are
more
closely
related
than
species
that
 are
only
in
the
same
________.
 a.
class

…

order
 b.
kingdom

...

phylum
 c.
family

…

order
 d.
phylum

…

class
 e.
family

…

genus
 
 24.
Which
of
the
following
factors
probably
was
not
important
in
the
formation
of
 the
many
species
of
Darwin’s
finches
on
the
Galapagos
Islands?
 a.
Geographical
isolation
from
the
mainland
 b.
Polyploidy
 c.
Different
habitats
on
the
different
islands
 d.
Geographical
isolation
of
one
island
from
another
 e.
Different
food
supplies
on
the
different
islands
 
 25.
Which
of
the
following
is
a
prezygotic
isolation
mechanism?
 a.
Abnormal
meiosis
following
fertilization
 b.
Infertile
hybrids
 c.
Reduced
viability
of
hybrids
 d.
Abnormal
mitosis
following
fertilization
 e.
Variation
in
mating
pheromones
 
 26.
The
modern
polar
bear
species
evolved
from
ancestral
bear
populations
in
 southern
Alaska
that
became
separated
by
glaciers
from
bear
populations
in
the
rest
 of
Nor...
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This note was uploaded on 02/01/2014 for the course BIO 311D taught by Professor Reichler during the Fall '08 term at University of Texas at Austin.

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