David Pribnow studied the base sequences of promoters in bacteria and bacterial viruses. He found two conserved regions in these promoters the - 10 box and the - 35 box). What is the function of these two regions of the promoter?
A) They signal the initiation site.
B) They separate the two DNA strands.
C) They bind the sigma subunit that is associated with RNA polymerase.
D) They attach the correct nucleotide triphosphate to the template DNA strand.

Question

Quizplus · Accepted Answer

The -10 and -35 boxes are recognized by the sigma subunit of RNA polymerase, allowing for proper positioning of the enzyme at the initiation site for transcription.

David Pribnow Studied the Base Sequences of Promoters in Bacteria