PT112.S4.Q10 > Analytics

SECTION 1 · lr

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13 Question 14 Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21 Question 22 Question 23 Question 24 Question 25 Question 26

SECTION 2 · rc

PASSAGE 1

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6

PASSAGE 2

Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13 Question 14

PASSAGE 3

Question 15 Question 16 Question 17 Question 18 Question 19 Question 20

PASSAGE 4

Question 21 Question 22 Question 23 Question 24 Question 25 Question 26

SECTION 3 · lr

SECTION 4 · lr

Twelve healthy people with version 1 of a gene and twelve healthy people with version 2 of a gene at a standard diet supplemented with high-cholesterol food. High cholesterol is associated with increased risk of heart disease. After three weeks of this diet, people with version 1 of the gene had increased cholesterol, whereas people with version 2 of the gene did not have increased cholesterol.

Version 2 of the gene might help remove cholesterol from the body. Eating high-cholesterol foods does not always lead to increased cholesterol in the body.

Unsupported. We don’t know the proportion of the general population with version 2 of the gene. The stimulus never told us that the participants in the study were representative of the general population.

Unsupported. We know high cholesterol increases risk of heart disease, but most people with heart disease might not have high cholesterol. They might have heart disease for other reasons.

Unsupported. We know the people with version 2 of the gene did not exhibit increased cholesterol. We don’t know whether this has anything to do with storing cholesterol before excreting it.

Unsupported. We don’t know the respective risks of heart disease among the two groups. In any case, people with version 1 of the gene ended up with increased cholesterol, so there’s evidence version 1 may be at higher risk of heart disease than version 2.

Strongly supported. The people with version 2 of the gene didn’t end up with increased cholesterol, whereas people with version 2 did. This is evidence something about version 2 may be reducing cholesterol or counteracting the increased cholesterol we would expect to observe.

Question

91% of people who answer get this correct

This is a slightly challenging question.

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Score of students with a 50% chance of getting this right

25% 129

140

75% 151

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Sampling

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147

160

158

163

91%

167

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PrepTest 112 - Section 4 - Question 10

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