ethanyayger
26.11.2019 •
Biology
In prokaryotes, termination of transcription can include which of the following?
a. the formation of a hairpin structure.
b. an enzyme with 5'–3' exonuclease activity.
c. the transcription of a u‑rich region.
d. an enzyme with helicase activity.
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Ответ:
In prokaryotes, termination of transcription can include the formation of a hairpin structure.
Option A
Explanation:
During replication the whole genome is being copied while in transcription just a selected portion is transcribed. To a gene to be expressed in its offspring the DNA sequence is copied to the RNA. Sometimes the transcription is terminated because of some terminator DNA.
At once it causes repeated pairing which forms a hairpin like structure. As repetition forms a string of TT this is not tolerated by so the RNA gets separated from the following DNA. This is formed by Rho independent mechanism.
Ответ:
I know not wot u rhinjk jschuwoichwelxwelcb.ercf cujvduwoc;wgcrue dhcdupglwep;ewiuqdgiu;lhwigc8eroyfc