Laboratory Review ❮ 255
❯ Review Questions
- If a dialysis bag with a solute concentration of
0.6 M is placed into a beaker with a solute con-
centration of 0.4 M, in which direction will
water flow?
A. Water will flow from the dialysis bag to the
beaker.
B. Water will flow from the beaker into the
dialysis bag.
C. Water will first flow out of the bag, and then
back into the bag.
D. The solution is already in equilibrium, and
water will not move at all.
E. It cannot be determined from the given
information.
- What is the rate of reaction for the enzyme–
substrate interaction shown in the graph below?
A. 6 μmol/min (micromoles per minute)
B. 5 μmol/min
C. 4 μmol/min
D. 3 μmol/min
E. 2 μmol/min
- In an experiment involving Sordaria,an ascomycete
fungus, it was found that of 450 offspring pro-
duced, 58 yielded a 2:2:2:2 ratio and 32 a 2:4:2
ratio. Approximately how far apart is the gene
from the centromere?
A. 10.0 map units
B. 15.0 map units
C. 20.0 map units
D. 25.0 map units
E. 30.0 map units
4. A plant would show the highest rate of transpi-
ration under which of the following conditions?
A. High humidity
B. Low temperature
C. High light intensity
D. Low air movement
E. A cold rainy day
5. Which of the following will result in a quicker
rate of DNA migration on an electrophoresis gel?
A. Increase in temperature of the gel
B. Increase in amount of DNA added to the well
C. Reversal of charge of gel, switching positive
and negative sides
D. Increase in current flowing through the gel
E. Increase in length of time that the current is
run through the gel
6. A lab experiment is set up in which the partici-
pants are heterozygous individuals (Aa). After
the F 1 generation is produced, 40 percent of the
participants are randomly removed from the
experiment and the remaining 60 percent are left
to continue breeding. This experiment would be
used to show what phenomenon?
A. Natural selection
B. Genetic drift
C. Gene flow
D. Mutation
E. Transformation
7. You are studying a population of pea plants with
flower colors ranging from white to dark pink.
You selected only those plants with the darkest
pink flowers to use in cross-pollination. Once
you plant the seeds and grow your new genera-
tion of pea plants, what would you expect to see?
A. The relative numbers of flower colors would
remain unchanged.
B. You would see disruptive selection.
C. Your results would show directional selection.
D. The relative numbers of white flowers would
increase.
24
20
μmol of
product
16
12
8
4
1 2 3 4 5 6 7
Time in minutes
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