WorksheetsRNA and protein synthesis
Total questions: 11
Worksheet time: 9mins
All of these RNAs are non-protein coding except for
tRNA
mRNA
rRNA
small nuclear RNA
The non-protein coding segments of a gene are known as
Exons
Introns
Match the following with the correct process
Transcription
DNA to RNA
Translation
RNA to protein
Replication
DNA to DNA
Which of the following is not involved in protein synthesis (translation) ?
RNA polymerase
mRNA
tRNA
Ribosomes
which of the following statements is FALSE regarding DNA transcription?
No primer is required
DNA is synthesized in the 5' to 3' direction
RNA polymerase is the main transcription enzyme
The coding strand is identical to the mRNA molecule
Which of the following is the TEMPLATE strand for this mRNA molecule?
5- AAA UUU GGC -3
3- UUU AAA CCG -5
3- TTT AAA CCG -5
5- TTT AAA CCG -3
5- AAA TTT CCG -3
3' end capping is a post-transcriptional modification of mRNA that
Adds a methylated guanine to the 3' end of mRNA
adds adenosine nucleotides to the 3' end of mRNA
removes the introns and joins the exons together
which part of the mature mRNA transcript protects from 3' to 5' exonucleases ?
5' methylated guanine
introns
exons
3' poly A tail
Arrange the answers in the correct sequence of protein synthesis
Charging of tRNA
Initiation with a start codon
elongation
termination with a stop codon
which antibiotic inhibits the binding of aminoacyl tRNAs to the A site in bacterial ribosomes?
chloramphenicol
macrolide antibiotics
tetracycline
which enzyme is responsible for catalysing peptide bond between amino acids during protein synthesis (RNA translation)
Peptidyl transferase
Peptidyl synthetase
