WorksheetsTranscription
Total questions: 10
Worksheet time: 5mins
Determine the enzyme which catalyzes the synthesis of pre-mRNA
RNA polymerase I
RNA polymerase III
DNA polymerase III
RNA polymerase II
Determine the enzyme which catalyzes the synthesis of pre-rRNA
RNA polymerase I
RNA polymerase III
DNA polymerase III
RNA polymerase II
Determine the enzyme which catalyzes the synthesis of pre-tRNA
RNA polymerase I
RNA polymerase III
DNA polymerase III
RNA polymerase II
What is the stage of gradual extension of the growing chain of pre-RNA to the final size?
initiation
elongation
termination
processing
In eukaryotes, the mature mRNA is
monocistronic
deprived of 3’-untranslated site
deprived of poly-A-tail
polycistronic
What is the anticodon loop of tRNA?
there are four nucleotide at the end of the site; to the most extreme of them (A) covalently attached amino acid
it is a site which contains stop codons
it is a site with 7 nucleotides in the middle of the chain; three of them perform the function of the anti-codon which complementarily interacts with the corresponding codon in the mRNA chain
in this structure, there are 4 double stranded and 5 single-stranded sites
Determine the fundamental difference between the synthesis of RNA and DNA synthesis:
the asymmetry of the process
the conservatism of the process
lack of the need for RNA primer
the synthesis of RNA requires primer
After the mRNA cap, there is a 5’-untranslated region which it is a sequence of several tens of nucleotide. It is complementary to one part of the RNA, which is included in the small subunit of the ribosome. What is the functional role of this mRNA region?
protect 5-end of mRNA from exonucleases
it contains one of three stop codons
it functions for primary binding of mRNA to the ribosome
it contains information about the amino acid sequence in the protein
What is the functional role of the coding region of mRNA?
it regulates the lifetime of mRNA
their vocation is to protect 5-end of mRNA from exonucleases
functions for primary binding of mRNA to the ribosome
it contains information about the amino acid sequence in the protein
What is the acceptor stem of tRNA?
there are four nucleotide at the 3 end of the site; to the most extreme of them (A) covalently attached amino acid
it contributes to the formation of a specific tertiary structure of tRNA
it is a site which contains stop codons
it is a site with 7 nucleotides in the middle of the chain; three of them perform the function of the anti-codon which complementarily interacts with the corresponding codon in the mRNA chain
