Lec 30 RNA Transcription Flashcards
rna that is ribosomal
rRNA
rna that encodes a protein
mRNA
rna for splicing
snRNA
rna that is a pre-mRNA
HnRNA
regulates mRNA expression
RNAi/miRNA
highest percentage of RNA
rRNA
smallest rna
tRNA
largest rna
mRNA
unstable e coli rna
mRNA, RNA primers
rna for dna replication
rna primers
unstable RNA in humans
HnRNA
splicing makes more blank than blank
mRNAs, pre mRNAs
blank have their own RNA
mitochondria
structure of secondary rna is shaped like a blank
three leaf clover
CCA end is put on the blank end of the tRNA in the cloverleaf
3’
transcription of rna is catalyzed by blank
rna polymerase
driving force of rna transcription
pyrophosphate
rna transcription direction
5’ to 3’
rna transcription requires local blank of dna
melting
sense strand is the blank sequence as dna but with blank instead
U
strand that is the complement of the sense strand
nonsense
dna sequences that direct rna polymerase to start transcription
promoters
active holoenzyme binds specifically to the dna template only at the promoters where causes blank
initiation
rna polymerase stops and releases the rna chain and the dna template
termination
eukaryotic rna polymerase 1 does blank
rRNA
eukaryotic polymerase 2 does blank
mRNA
eukaryotic rna polymerase 3
tRNA
all forms of transcription are inhibited by blank
actinomycin D
sensitive polymerases to aminitin inhibitor
2,3
sensitive polymerases to rifampicin
mt, pI
core promoter at about -25
TATAA
basal promoter at about -75
CCAAT
these mRNA increase transcription of the cis linked promoter
enhancers
rna that is an adapter
tRNA
