During elongation, RNA polymerase has three prominent channels, or grooves. These channels provide sites for all of the following EXCEPT ________.(2.5)
选项:
A: a site for the double-stranded DNA molecule
B: a site for the entry of ribonucleoside triphosphates
C: a site for the exit of diphosphates removed from the nucleotide triphosphates
D: a site for the growing RNA strand
发布时间:2024-06-23 14:02:36