If the DNA sequence 5′-CCTATCGA-3′ was the template for transcription into mRNA, the sequence of the resulting RNA would be
A) 5′-GGATAGCT-3′.
B) 5′-GGAUAGCU-3′.
C) 3′-GGAUAGCU-5′.
D) 3′-GGATAGCT-5′.
E) 5′-AGCUAUCC-3′.

Question

Quizplus · Accepted Answer

During transcription, RNA polymerase reads the template DNA strand in the 3′ to 5′ direction and synthesizes RNA in the 5′ to 3′ direction. The RNA sequence is complementary to the DNA template, but with uracil (U) replacing thymine (T). Therefore, the correct RNA sequence, considering directionality, is 3′-GGAUAGCU-5′.

If the DNA Sequence 5′-CCTATCGA-3′ Was the Template for Transcription