The two key elements of the oriC include
A) three 13-bp repeats and four 9-bp repeats with enriched G-C base pairs.
B) three 13-bp repeats and four 9-bp repeats with enriched A-T pairs.
C) 20 subunits of A-T pairs.
D) the RNA primer.

Question

Quizplus · Accepted Answer

The two key elements of the oriC in bacterial genomes include three 13-bp repeats and four 9-bp repeats. These repeats have enriched A-T base pairs, which facilitate the unwinding of the double-stranded DNA and initiation of replication. The presence of these specific repeats serves as a recognition site for the proteins involved in the initiation of DNA replication. A is incorrect because the repeats have enriched A-T pairs, not G-C pairs. C and D are also incorrect because they are not elements of the oriC.

The Two Key Elements of the OriC Include