Posted: July 25th, 2017

RNA polymerase:

RNA polymerase:
A. separates DNA strands throughout a long region of DNA (up to
thousands of base pairs), then copies one of them.
B. has a subunit called l (lambda), which acts as a proofreading
ribonuclease.
C. binds tightly to a region of DNA thousands of base pairs away from
the DNA to be transcribed.
D. can synthesize RNA chains de novo (without a primer)