Protein Synthesis Quiz

Which of the four types of nucleic acids is this?

• rRNA

• mRNA

• tRNA

• DNA

What is the function of Ribosomal RNA (rRNA)?

• Carries DNA sequence information to ribosomes

• Transfers amino acids to ribosomes

• Contains the genetic information

• Structural component of ribosomes

Which of the four types of nucleic acids carries genetic code from DNA in a cell's nucleus to ribosomes.

• mRNA

• tRNA

• rRNA

• DNA

What is the first step in gene expression, which involves copying a gene's sequence to make an mRNA molecule?

• Translation

• RNA Processing

• Transcription

• Binary fission

What is the name of the enzyme involved in transcription?

• DNA polymerase

• RNA polymerase

• taq polymerase

• Endonuclease

In which direction is mRNA synthesised?

• 5' to 3' direction. New nucleotides added to the 3' end.

• 3' to 5' direction. New nucleotides added to the 5' end

Which of the following is not a requirement for translation to begin?

• The addition of a poly A tail to the 5' end

• A ribosome

• An mRNA molecule

• An initiator tRNA carrying the first amino acid

What is the name of the complex involved in splicing introns?

• Spliceosome

• Exosome

• Introsome

• Methylosome

The RNA processing step would not occur in which of the following organisms?

• Polar bear

• Oak tree

• Mushroom

• Bacteria

Different combinations of exons can be spliced together to generate different mature mRNAs. This is called

• transcription

• alternative splicing

• random assortment

• RNA processing