43 transcription

RNA polymerase

Synthesized rna strands

Template strand

DNA strand used as a template for rna

Coding strand

DNA strand that has the same sequence as the template strand (expect for thymine being replaced by uricil)

Upstream

Direction opposite of transcription

Downstream

Direction in which transcription proceeds

Promoter

DNA sequence that initiates transcription

Terminator

Sequence that tells rna polymerase where to stop/terminate

Primary (initial) transcript

The newly copied RNA

Core enzyme

Synthesizes the rna transcript

Sigma subunit

Binds to the promoter, the 35 box and 10 box promoters

Holoenzyme

Together both the core enzyme and sigma subunit make this

First step of modification for mRNA

Attachment of 5’ methylated cap

Second step of modification for mRNA

Attachment of 3’ poly-A tail

Polyadenylation signal sequence

Attachment of 3’ poly-a tail

RNA splicing

Introns are removed from mRNA and then rejoined through exons