A team of biologists led by Jae-Hoon Jung, Antonio D. Barbosa, and Stephanie Hutin investigated the mechanism that allows Arabidopsis thalian plants to accelerate flowering at high temperatures. They replaced the protein ELF3 in the plants with a similar protein found in another species that, unlike A.thaliana, displays no acceleration in flowering with increased temperature. A comparison of unmodified A.thaliana plants with the altered plants showed no difference in flowering at 22° Celsius, but at 27° Celsius, the unmodified plants exhibited accelerated flowering while the altered ones did not, which suggests that____

Which choice completes the text so that it conforms to the conventions of Standard English?

A short passage explicit the information to analyze, and interpret the main idea.

Special attention to the facts and details draws out the main idea.

Can you summarize what you’ve understood in the above steps?

Choice A is correct because it logically reconciles the apparent contradiction between the thirteenth-century artifacts and the fourteenth-century founding date.

ELF3 enables A.thaliana to respond to increased temperatures.

Choice B is incorrect because it does not logically reconcile the discrepancy between the artifact dates and the proposed founding date of the settlement. Instead, it introduces the idea that the artifacts came from somewhere else, which doesn’t address the central issue of how the settlement’s founding date could be in the fourteenth century if there are artifacts from the thirteenth century.

Specific to temperature-sensitive accelerated A.thaliana.

Choice C is incorrect because it does not logically follow from the information provided in the passage. The passage discusses the dating of artifacts and the founding date of Kuulo Kataa. Specifically, it suggests that some artifacts date from the thirteenth century, while other evidence supports a fourteenth-century founding date.

A.thaliana increases ELF3 production as temperatures rise.

Choice D is incorrect because it does not directly address the implications of the provided information.

temperatures of at least 22° Celsius are required for A.thaliana to flower.

Correct sentence

ELF3 enables A.thaliana to respond to increased temperatures.

Option

A

Can you summarize what you’ve understood in the above steps?