1
initials________
Below is the final curve for bio 111 for the spring semester 2006. I have not developed a curve for the
final exam as it has no relevance. The curve is based on the total number of points earned, 430. Your
grades on the final exam should appear on webCT shortly.
grade
total
pts
%of
total
A
359
83.5
A
342
79.6
B+
325
75.6
B
308
71.7
B
291
67.7
C+
274
63.8
C
257
59.8
C
240
55.9
D+
223
51.9
D
206
48.0
D
189
44.0
The key for the final exam follows, beginning on the next page.
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initials________
Part 1: Review questions (5.5)
Answering this question is required.
1. a. (1) In a population at a single locus for eye color there are only three alleles.
locus for eye color
freq.
allele 1
0.3
allele 2
0.5
The frequencies of the alleles 1 and 2 are
given in the table. What is the frequency
of allele 3? Place your answer in the table
in the appropriate box.
allele 3
0.2
b. (.5) At a second locus, this one for fur color (
NOT
the one outlined in the box above) there are
only
two
alleles
, Fur1 and Fur2.
List the
genotypes
that are possible in the population of diploid organisms.
Fur1/Fur1 Fur2/Fur1 Fur2/ Fur2 (This is an all or nothing answer for .5)
c. (.5)
Allele
Fur1
has a frequency of 0.3. The frequency of
the Fur1/Fur1
genotype
is also 0.3.
Given this data, do you think that at least one of the Hardy Weinberg conditions is being violated?
(Circle one)
yes
/ no
(2) Use the Hardy Weinberg theorem
and equation
to support your choice of yes or no.
(.5) If at equilibrium, the equation predicts the frequency of Fur1/Fur1 should be 0.09
(1) Fur1/Fur1 is not 0.09 or Fur1/Fur1 is not at the predicted value
(.5) at least one of the conditions must have been violated or a statement that the prediction is valid only
if all conditions are met or at equilibrium only if all are met or non violated.
1
2
A
a
At the left are the chromosomes from an animal that is a
diploid. Shown on the long chromosomes are two alleles, 1
and 2, at a locus and on the short chromosome are two
alleles, A and a, at a locus.
d. (.5) What is the
N number
for this organism? __
2
___
(1) In the space to the right, draw the chromosomes as they
would appear in
metaphase 1 of meiosis
to produce a
gamete that has the genotype 1/A. Clearly indicate the
location of the alleles on all of the chromosomes.
2. Osmosis and diffusion
Answering this question is required (3.5)
A U tube is filled with different water based solutions of designated osmotic potential (Op).
Op = 35 MPa
Op = 10 MPa
water permeable membrane
plunger
Side A side B
a. (.5)
In the absence of the plunger
, the water will move to (circle one) side A
/
side B
of the U tube.
b. (.5) In the U tube, what is the pressure exerted by the plunger if the water levels do not change?
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 Spring '08
 LynSajdak
 Population Ecology

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