Examine the figure above and answer the following question(s).
-In this representation of transcription,strand # ____ is ____ because it ____.
A) 2; RNA; is double-stranded
B) 3; RNA; contains uracil
C) 2; RNA; contains thymine
D) 2; RNA; has no uracil
E) 3; DNA; contains adenine

Question

Examine the figure above and answer the following question(s).
-In this representation of transcription,strand # ____ is ____ because it ____.
A) 2; RNA; is double-stranded 
B) 3; RNA; contains uracil 
C) 2; RNA; contains thymine 
D) 2; RNA; has no uracil 
E) 3; DNA; contains adenine

Quizplus · Accepted Answer

In transcription, RNA is synthesized from a template strand of DNA. In the figure, strand #3 is being transcribed into RNA, indicated by the presence of uracil in the RNA strand instead of thymine. Therefore, choice B is the correct answer. Choice A is incorrect because strand #2 is the template strand, not the RNA strand. Choice C is incorrect because RNA does not contain thymine. Choice D is incorrect because uracil is present in the RNA strand. Choice E is incorrect because adenine is present in both DNA strands and is not specific to the transcribed RNA strand.

Examine the Figure Above and Answer the Following Question(s)