Multiple Choice
Which process describes the synthesis of an RNA molecule from a DNA template?
61
views
15. Gene Expression
Introduction to Transcription
Struggling with General Biology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Transcription is sometimes described as a process in which RNA is "copied" from the template strand of DNA. This statement is potentially misleading since _____.
A
The nucleotides in RNA contain ribose and cannot be an exact copy of DNA.
B
RNA molecules contain uracil instead of thymine and cannot be an exact copy of DNA.
C
The RNA transcript has a sequence complementary to the template.
D
The RNA transcript and the DNA template strand are antiparallel.
E
All of the above.
Verified step by step guidance1
Understand that transcription is the process of synthesizing RNA from a DNA template. This involves creating an RNA strand that is complementary to the DNA template strand.
Recognize that RNA nucleotides contain ribose sugar, whereas DNA nucleotides contain deoxyribose. This difference in sugar means RNA cannot be an exact copy of DNA.
Note that RNA uses uracil (U) instead of thymine (T), which is found in DNA. This substitution means that RNA cannot be an exact copy of DNA.
Realize that the RNA transcript is complementary to the DNA template strand, meaning that each base in the RNA is paired with its complementary base in the DNA (A with U, T with A, C with G, and G with C).
Understand that the RNA transcript and the DNA template strand are antiparallel, meaning they run in opposite directions, which is another reason why RNA is not an exact copy of the DNA template.
5:51mWatch next
Master Introduction to Transcription with a bite sized video explanation from Jason
Start learningRelated Videos
Related Practice
Introduction to Transcription practice set
Problem sets built by lead tutorsExpert video explanations