biochem Module 8 Flashcards
(102 cards)
this is always the first amino acid to be translated
a. tyrosine
b. methionine
c. alanine
d. valine
b
process of RNA synthesis is called
a. replication
b. transcription
c. translation
d. transcytosis
b
c- protein synthesis
prokaryotic rRNA
a. 28s
b. 18s
c. 16s
d. 5.8 s
c
In, DNA synthesis, all parts will be replicated in RNA synthesis, all parts will be transcribed
a. first statement true, second false
b. first and second statements true
c. both false
d. first statement false, second true
a
most abundant RNA
a. mRNA
b. tRNA
c. rRNA
d. snRNA
c
mRNA- most heterogenous
difference between RNA and DNA synthesis except
a. RNA synthesis has no proofreading ability
b. RNA synthesis does not follow Watson Crick base pairing rules
c. No primer is used in RNA synthesis
d. only a portion of genome is transcribed
b.
in RNA synthesis, the \_\_\_\_\_\_ is used a non coding strand of the DNA b. coding strand of the DNA c. non coding strand of the RNA d. coding strand of the RNA
a non coding or template strand
RNA used for splicing
a. mRNA
b. tRNA
c. rRNA
d. snRNA
d
DNA dependend RNA polymerase must attach to the ____ for transcription to occue
a. promoter region of the coding strand of DNA
b. promoter region of the non coding strand of DNA
c. promoter region of the coding strand of RNA
d. promoter region of the non coding strand of RNA
b
primary transcript is complementary with a non coding strand of the DNA b. coding strand of the DNA c. non coding strand of the RNA d. coding strand of the RNA
a
starting point of transcription
a. -35
b. -10
c. +1
d. +12
C
mechanism of action of quinolones
a. inhibits bacterial cell wall synthesis
b. 30 s inhibitor
c. 50 s inhibitor
d. inhibits DNA gyrase
d
direction of transcription
a. upstream or to the right
b. upstream or to the left
c. downstream or to the right
d. downstream or to the left
c
Type of mutation wherein cytidine becomes guanine A. Translocation B. Transition C. Transversion D. Silent mutation
C
GTP in the initiation process of translation is bound to A. eIF1 B. eIF2 C. eIF4 D. eIF5
B
posttranscriptional modification in the 3’ end
a. capping
b. poly A tail
c. introns
d. Splicosome
b
capping-5’ end
protein synthesis is synthesized in what direction
a. 3’-5’
b. 5’-3’
c. both direction
d. 1’-5’
b
pribnow box are recognized by
a. alpha factor
b. beta factor
c. rho factor
d. sigma factor
d
RNA synthesis is synthesized in what direction
a. 3’-5’
b. 5’-3’
c. both direction
d. 1’-5’
b
process in RNA syntheisis wherein RNAP begins to synthesize a transcript of DNA sequence
a. initiation
b. elongation
c. replication
d. termination
b
elongation of RNA is done via the
a. addition in the 2’- OH
b. addition in the 3’-OH
c. cleavage in the 2’-OH
d. cleavage in the 3’-OH
b
components of a core enzyme RNA polymerase except
a. alpha subunit
b. beta subunit
c. beta prime subunit
d. sigma subunit
d.
if with sigma- holoenzyme
caps of the primary transcript
a. 5- methylcytosine diphosphate
b. 3- methyladenine monophosphate
c. 7- methylguanosine triphosphate
d. 9- methyluracil monophosphate
c
Equivalent to the methyl cap in prokaryotes A. Kozak consensus sequence B. Shine Delgarno sequence C. TATA box D. Pribnow box
B