Q1. It can be inferred from the passage that the turtles from the Aves Island study
A. had, with the exception of one, genetic patterns distinct from those in the Tortuguero study
Correct as mentioned directly in the passage.
B. have shown that using DNA to track turtles is a flawed technique
The passage doesn't say that. Agreed that there are multiple interpretations of the technique by Bowen and his co-workers as mentioned in the first line of last para. But the last line of the same para supports the study. Eliminate B
C. all exhibited genetic patterns similar to those of the Hutchinson and Tortuguero study turtles
Nope. only One out of the eight does.
D. are part of an endangered species
Nowhere mentioned. Eliminate
E. had DNA that differs from those turtles that are from Venezuela
Nowhere mentioned. Eliminate
Q2. The primary purpose of this passage is to
A. disprove a previously existing theory
Nope. It doesn't disprove the existing thoery. As first line of the passage suggests, they are only looking for alternate theories.
B. present a new idea along with some data
Bingo!! That's what's discussed throughout the passage
C. establish the infallibility of a new concept
Wrong. The new concept also does have some loopholes which are discussed in the last para. There are multiple interpretations of the technique by Bowen and his co-workers as mentioned in the first line of last para
D. confirm the validity of a novel hypothesis
They don't confirm it's validity. They only mention in the last line that the study bolsters an idea.
E. track the development of a particular species
The primary purpose is to look for
some new idea to track animals. For that purpose they track a particular species. Classic trap choice
Q3. The information provided in the passage about Bowen's research can be used to answer which of the following questions?
A. Does social mixing occur between turtles from Florida's Hutchinson Island and Costa Rica's Tortuguero sanctuary?
It doesn't answer that, Passage itself mentions that there are multiple interpretations
B. Is there extensive interbreeding among green turtles from different areas?
Correct. As the passage mentions "Bowen’s study appears to have bolstered the idea that most populations of green turtles are genetically distinct, and that the turtles return to their birthplaces at nesting time.". There
may be interbreeding among some species as mentioned in the last para. But that is only speculated. Their findings, Bowen asserts, lend credence to the “natal homing” theory. So there is no way extensive interbreeding will happen. Because if it does then why would turtles swim thousands of miles to their homelands.
C. To what extent can DNA testing be used to detect genetic differences?
Doesn't answer
D. Does tagging wild animals with metal disks or wires alter their mating habits?
Nowhere mentioned
E. By what mechanism do green turtles find their way back to their birthplace when they are ready to breed?
Nowhere mentioned
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