Question

What is the size of the transcription bubble and RNA/DNA hybrid in it?

A. 8-9 nt; 6-7 nt

B. 12-14 nt; 8-9 nt

C. 10-12 nt; 5-6 nt

D. 16-18 nt; 10-12 nt

Answer 1

The size of the transcription bubble is 10-12 nucleotides and the RNA/DNA hybrid within it is 5-6 nucleotides long.

Step-by-step explanation:

The size of the transcription bubble, which is the region of DNA that is unwound during transcription, is around 10-12 nucleotides. This allows the RNA polymerase to access the DNA template strand and synthesize RNA.

The RNA/DNA hybrid in the transcription bubble is approximately 5-6 nucleotides long. This hybrid consists of RNA nucleotides that are paired with the complementary DNA strand.