Bio 151 Spring 2010 Exam 1
25 questions, 3 points each, 75 points total
Name___________________________________
MULTIPLE
CHOICE.
Choose
the
one
alternative
that
best
completes
the
statement
or
answers
the
question.
1) The
ant,
Myrmecia
pilosula,
is
found
in
Australia
and
is
nicknamed
the
bulldog
ant
because
of
its
aggressive
behavior.
It
is
particularly
interesting
because
it
carries
all
its
genetic
information
in
a
single
pair
of
chromosomes.
In
other
words,
2n
=
2.
(Males
are
haploid
and
have
just
one
chromosome.)
Which
of
the
following
figures
would
most
likely
represent
a
correct
configuration
of
chromosomes
in
a
Metaphase
I
cell
of
a
female?
A)
B)
C)
D)
E)
2) If
a
typical
somatic
cell
has
32
chromosomes,
how
many
chromosomes
are
expected
in
each
gamete
of
that
organism?
A) 16
B) 64
C) 46
D) 0
E) 32
B1
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document3) Apply
the
product
law
to
a
coin

flip
situation.
What
is
the
probability
that
on
three
flips
of
a
coin,
heads
will
occur
on
all
three
flips?
A) 1/8
B) 3/16
C) 1/4
D) 1/2
E) insufficient
information
to
answer
this
question
4) In
tigers,
a
recessive
allele
causes
a
white
tiger
(virtual
absence
of
fur
pigmentation).
If
two
phenotypically
normal
tigers
are
mated
and
produce
a
white
offspring,
approximately
what
percentage
of
their
remaining
offspring
are
expected
to
be
white?
A) about
66%
B) 75%
C) about
90%
D) 25%
E) 50%
5) The
Chi

square
test
involves
a
statistical
comparison
between
measured
(observed)
and
predicted
(expected)
values.
One
generally
determines
degrees
of
freedom
as
A) ten
minus
the
sum
of
the
two
categories.
B) the
This is the end of the preview.
Sign up
to
access the rest of the document.
 Spring '10
 Autumn
 RNA, Zygosity, phenotypic ratio, Myrmecia pilosula

Click to edit the document details