LSAT 155 – Section 4 – Question 16

LSAT 155 - Section 4 - Question 16

November 2019

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Question
QuickView		 Type Tags Answer
Choices		 Curve Question
Difficulty		 Psg/Game/S
Difficulty		 Explanation
PT155 S4 Q16
+LR
Most strongly supported +MSS
Causal Reasoning +CausR
A
7%
159
B
21%
159
C
2%
153
D
61%
161
E
9%
154
125
149
174
 +Medium 147.589 +SubsectionMedium

In an effort to boost milk production, some dairy farmers are treating cows with a genetically engineered hormone called BST. Consumer groups have opposed the use of BST even though the milk of BST-treated cows is identical in nutritional value to that of untreated cows; the treated cows run a greater risk of infection and hence are more likely to be given antibiotics, which may show up in their milk. In high levels, these antibiotics may be harmful to humans. Yet the milk of treated and untreated cows alike is regularly screened for antibiotics.

Summary
Dairy farmers use BST to boost cow milk production. Some people oppose BST because it puts cows at a higher risk of infection. A higher risk of infections leads to more frequent use of antibiotics, which could appear in milk and be harmful at high levels. Milk from BST and non-BST cows is regularly screened for antibiotics.

Strongly Supported Conclusions
If BST milk is not screened, it cannot be regarded as 100% safe.
If it is safe, then the milk has been scanned.

A
Consumer groups have no legitimate reasons for opposing the use of BST.
This is anti-supported. The stimulus explains that some groups are opposed due to the presence of antibodies, which can be dangerous to humans.
B
Milk from BST-treated cows is as safe for human consumption as that from untreated cows.
This is anti-supported. The stimulus raises concerns about the potential for high amounts of antibiotics to be in BST milk.
C
There is no advantage to the use of BST on dairy cows.
This is anti-supported. The stimulus details that BST boosts milk production.
D
Milk from BST-treated cows can be presumed safe for humans only if it is successfully screened for high levels of antibiotics.
The stimulus explains that the notable difference between BST and non-BST milk is the potential increased concentration of antibiotics. Thus, if it is safe for humans, it must have been screened for antibiotics.
E
The only threat posed by drinking milk from cows treated with BST is high levels of antibiotics.
This is too strong to support. The stimulus does not claim that a heightened level of antibiotics is the *only* threat posed by BST milk, just that it is one of them.

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LSAT PrepTest 155 Explanations

Section 1 - Logical Reasoning

Section 2 - Logical Reasoning

Section 3 - Reading Comprehension

Section 4 - Logical Reasoning

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