Ch.8 Flashcards
Difference in RNA and DNA
RNA is single stranded and has Uracil
Folds in on itself and forms various shapes
DNA in genes is used as a template to make ___ that is _______ to DNA
RNA, complimentary
_____ ______ enzyme makes the RNA transcript
RNA polymerase
After the transcription process, DNA re-forms its _____ _____
double helix
RNA transcripts can form without a ______
primer
transcription begins by guiding the ____ ______ enzyme to the transcription start site of the gene
RNA polymerase
sequences that bind ____ ______ guide transcription
transcription factors
sequences which bind transcription factors near the transcription start site are _____
promoters
in bacterial transcription: what binds the promoter?
sigma factors (associated with RNA polymerase)
true or false: eukaryotic transcription is less complex and less highly regulated than bacterial transcription
false
true or false: bacterial transcription is loosely regulated
false
RNA polymerase which transcribes most rRNA genes
RNA polym. I
RNA polymerase which transcribes protein-coding genes and miRNA genes
RNA polymerase II
RNA polymerase which transcribes tRNA genes, genes for small RNA’s
RNA polymerase III
what binding protein starts protein complex assembly in eukaryotes
TATA
protein complex leads to ____ _____ __ binding
RNA polymerase II
mRNA’s are processed as they are ______ transcribed
What processes (modifications) can mRNA’s undergo
capping. splicing, and adding tails
mRNA’s are modified at the ___ end, by the addition of a methylated _____. This process is known as the ___ ___
5’, GTP ; 5’ cap
The Poly A tail modification is added to the ___ end of mRNA
3’