DSAT R&W Practice Question-Expression of Ideas-Rhetorical Synthesis – Medium
DSAT R&W Practice Question-Expression of Ideas-Rhetorical Synthesis – Medium
DSAT R&W Practice Question-Expression of Ideas-Rhetorical Synthesis – Medium is part of Expression of Ideas : This section assesses the ability to revise and enhance written material for its intended purpose. Instead of rewriting passages, students will address grammatical and vocabulary issues through multiple-choice questions. For instance, students may need to choose the best edit to make a passage more persuasive or informative based on the provided rhetorical (persuasive writing) goals
Weightage : 20%
Subtopic: Expression of Ideas
Question
While researching a topic, a student has taken the following notes:
- Organisms release cellular material into their environment by shedding substances such as hair or skin.
- The DNA in these substances is known as environmental DNA, or eDNA.
- Researchers collect and analyze eDNA to detect the presence of species that are difficult to observe.
- Geneticist Sara Oyler-McCance’s research team analyzed eDNA in water samples from the Florida Everglades to detect invasive constrictor snake species in the area.
- The study determined a 91% probability of detecting Burmese python eDNA in a given location.
The student wants to present the study to an audience already familiar with environmental DNA. Which choice most effectively uses relevant information from the notes to accomplish this goal?
A. Sara Oyler-McCance’s researchers analyzed eDNA in water samples from the Florida Everglades for evidence of invasive constrictor snakes, which are difficult to observe.
B. An analysis of eDNA can detect the presence of invasive species that are difficult to observe, such as constrictor snakes.
C. Researchers found Burmese python eDNA, or environmental DNA, in water samples; eDNA is the DNA in released cellular materials, such as shed skin cells.
D. Sara Oyler-McCance’s researchers analyzed environmental DNA (eDNA)—that is, DNA from cellular materials released by organisms—in water samples from the Florida Everglades.
▶️Answer/Explanation
Ans. A
Correct Answer: A
Rationale
Choice A is the best answer. This choice presents the study in a way that assumes the audience is already familiar with eDNA.
Choice B is incorrect. This choice doesn’t present the study. It only states a general fact about eDNA analysis. Choice C is incorrect. This choice isn’t suited for an audience already familiar with eDNA. A familiar audience wouldn’t need to have the term defined or explained. Choice D is incorrect. This choice isn’t suited for an audience already familiar with eDNA. A familiar audience wouldn’t need to have the term defined or explained. It also doesn’t present the study.
Question
While researching a topic, a student has taken the following notes:
- Species belonging to the Orchidaceae (orchid) family can be found in both tropical and temperate environments.
- Orchidaceae species diversity has not been well studied in temperate forests, such as those in Oaxaca, Mexico.
- Arelee Estefanía Muñoz-Hernández led a study to determine how many different Orchidaceae species are present in the forests of Oaxaca.
- Muñoz-Hernández and her team collected orchids each month for a year at a site in Oaxaca.
- Seventy-four Orchidaceae species were present at the site.
The student wants to present the study and its findings. Which choice most effectively uses relevant information from the notes to accomplish this goal?
A. A study led by Arelee Estefanía Muñoz-Hernández identified a total of 74 Orchidaceae species in the temperate forests of Oaxaca, Mexico.
B. There are orchids in many environments, but there are 74 Orchidaceae species in Oaxaca, Mexico.
C. Oaxaca, Mexico, is home to temperate forests containing 74 Orchidaceae species.
D. Arelee Estefanía Muñoz-Hernández and her team wanted to know how many different Orchidaceae species are present in the forests of Oaxaca, Mexico, so they conducted a study to collect orchids.
▶️Answer/Explanation
Ans. A
Correct Answer: A
Rationale
Choice A is the best answer. This choice most effectively presents the study and its findings. It opens with the study and names its lead researcher, then tells us its finding: that they identified 74 Orchidaceae species in the temperate forests of Oaxaca, Mexico.
Choice B is incorrect. This choice doesn’t include the study’s findings, so it fails to achieve the goal. It doesn’t mention that there was a study at all. Choice C is incorrect. This choice doesn’t present the study, so it fails to achieve the goal. It doesn’t mention that there was a study at all. Choice D is incorrect. This choice doesn’t include the study’s findings, so it fails to achieve the goal.