AP Biology Practice Exam 1 ❮ 269
39.What kind of speciation does this example
illustrate?
A. Allopatric
B. Sympatric
C. Isolated
D. Polyploidy
40.Which of the following could possibly characterize
the new variant?
A. Adaptive radiation
B. Divergent selection
C. Equilibrium
D. Polyploidy
41.Which of the following is likely to exhibit the
process described earlier?
A. Fallow deer
B. Fruit flies
C. Grass
D. Spotted toads
For questions 42–44, please refer to the following
answers:
42.The DNA placed in this electrophoresis gel
separates as a result of what characteristic?
A. pH
B. Charge
C. Size
D. Polarity
43.If this gel were used in a court case as DNA evi-
dence taken from the crime scene, which of the
following suspects appears to be guilty?
A. Suspect A
B. Suspect B
C. Suspect C
D. Suspect D
44.Which two suspects, while not guilty, could pos-
sibly be identical twins?
A. A and B
B. A and C
C. B and C
D. B and D
Questions 45–48: The frequency of genotypes for a
given trait are given in the accompanying graph.
Answer the following questions using this information:
45.What is the frequency of the recessive homozygote?
A. 15 percent
B. 19 percent
C. 25 percent
D. 40 percent
46.What would be the approximate frequency of
the heterozygote condition if this population
were in Hardy-Weinberg equilibrium?
A. 20 percent
B. 45 percent
C. 48 percent
D. 72 percent
- Is this population in Hardy-Weinberg equilibrium?
A. Yes
B. No
C. Cannot tell from the information given
D. Maybe, if individuals are migrating
Evidence A B C D
AA Aa aa
36% 45% ?%
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