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Dental Biochemistry > Lec 30 RNA Transcription > Flashcards

Lec 30 RNA Transcription Flashcards

1
Q

rna that is ribosomal

A

rRNA

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2
Q

rna that encodes a protein

A

mRNA

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3
Q

rna for splicing

A

snRNA

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4
Q

rna that is a pre-mRNA

A

HnRNA

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5
Q

regulates mRNA expression

A

RNAi/miRNA

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6
Q

highest percentage of RNA

A

rRNA

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7
Q

smallest rna

A

tRNA

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8
Q

largest rna

A

mRNA

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9
Q

unstable e coli rna

A

mRNA, RNA primers

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10
Q

rna for dna replication

A

rna primers

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11
Q

unstable RNA in humans

A

HnRNA

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12
Q

splicing makes more blank than blank

A

mRNAs, pre mRNAs

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13
Q

blank have their own RNA

A

mitochondria

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14
Q

structure of secondary rna is shaped like a blank

A

three leaf clover

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15
Q

CCA end is put on the blank end of the tRNA in the cloverleaf

A

3’

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16
Q

transcription of rna is catalyzed by blank

A

rna polymerase

17
Q

driving force of rna transcription

A

pyrophosphate

18
Q

rna transcription direction

A

5’ to 3’

19
Q

rna transcription requires local blank of dna

A

melting

20
Q

sense strand is the blank sequence as dna but with blank instead

A

U

21
Q

strand that is the complement of the sense strand

A

nonsense

22
Q

dna sequences that direct rna polymerase to start transcription

A

promoters

23
Q

active holoenzyme binds specifically to the dna template only at the promoters where causes blank

A

initiation

24
Q

rna polymerase stops and releases the rna chain and the dna template

A

termination

25
Q

eukaryotic rna polymerase 1 does blank

A

rRNA

26
Q

eukaryotic polymerase 2 does blank

A

mRNA

27
Q

eukaryotic rna polymerase 3

A

tRNA

28
Q

all forms of transcription are inhibited by blank

A

actinomycin D

29
Q

sensitive polymerases to aminitin inhibitor

A

2,3

30
Q

sensitive polymerases to rifampicin

A

mt, pI

31
Q

core promoter at about -25

A

TATAA

32
Q

basal promoter at about -75

A

CCAAT

33
Q

these mRNA increase transcription of the cis linked promoter

A

enhancers

34
Q

rna that is an adapter

A

tRNA

Dental Biochemistry (43 decks)

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