Chapter 12.2, Problem 1COMQ

With regard to a promoter, a transcriptional start site is

a. located at the $-35$

sequence and is recognized by $\sigma$

factor.

b. located at the $-35$

sequence and is where the first base is used as a template for transcription.

c. located at the $+1$

site and is recognized by σ factor.

d. located at the $+1$

e. site and is where the first base is used as a template for transcription.