Causes Of Slowest Migration Of DNA Fragments

Causes Of Slowest Migration Of DNA Fragments
Causes Of Slowest Migration Of DNA Fragments
101. Based on the information in the passage, Allele 2 traveled through the
agarose gel faster than:
(A) Allele 1 but slower than Allele 3.
(B) neither Allele 1 nor Allele 3.
(C) Allele 3 but at the same rate as Allele 1.
(D) both Alleles 1 and 3.
102. According to the passage, a single darker band, as seen in Lane E, most
likely indicates an:
(A) error during the electrophoresis process.
(B) error when collecting the DNA sample.
(C) individual missing an allele due to mutation.
(D) individual with two copies of the same allele.
Causes Of Slowest Migration Of DNA Fragments
103. What is the approximate size of Allele 1?
(A) 3.0 kb
(B) 1.0 kb
(C) 8.0 kb
(D) 0.5 kb
52 › McGraw Hill 500 ACT Science Questions
Test 3 ‹ 53
104. What is the most common allele combination represented in the DNA
samples shown in Figure 3.3?
(A) Two copies of Allele 2
(B) Allele 1 and Allele 2
(C) Two copies of Allele 1
(D) Allele 1 and Allele 3
105. Which of the following provides the best explanation for the result shown
in Lane J?
(A) Individual J carries Alleles 1 and 3.
(B) Individual J carries Alleles 2 and 3.
(C) Lane J contains the DNA ladder.
(D) Sample J contains DNA from two individuals.
106. Which allele combination is not represented in the DNA samples shown
in Figure 3.3?
(A) Allele 1 and Allele 3
(B) Allele 1 and Allele 2
(C) Two copies of Allele 3
(D) Allele 2 and Allele 3
107. Which agarose concentration was most likely used in the electrophoresis in
Figure 3.3?
(A) 1.5%
(B) 2.0%
(C) 1.0%
(D) 1.2%
108. Which combination of factors would cause the slowest migration of DNA
fragments?
(A) 0.5% agarose and 7 V/cm
(B) 2.0% agarose and 7 V/cm
(C) 2.0% agarose and 0.25 V/cm
(D) 0.5% agarose and 0.25 V/cm
109. In the three experiments, response time is measured as the time between:
(A) exposures to two consecutive stimuli.
(B) exposure to a stimulus and the subsequent response.
(C) the registering of two consecutive responses.
(D) the beginning and end of one trial.
110. The stimulus in Experiment 1 was the:
(A) sounding of a tone.
(B) appearance of a screen image.
(C) pressing of the spacebar.
(D) use of a computer program
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