W4L8 - Translation MCQ

• Which of the following are true?

  1. Transcription is the production of DNA from RNA
  2. Transcription is the production of RNA from DNA
  3. Transcription is the production of RNA from protein
  4. Transcription is the production of protein from RNA
  5. Translation is the production of DNA from RNA
  6. Translation is the production of RNA from DNA
  7. Translation is the production of RNA from protein
  8. Translation is the production of protein from RNA

  2 and 8
• How nucleotides make a codon?

  3
• How many reading frames does a molecule of DNA have?

  6
• Assuming that you start with a methionine, what would be the peptide sequence for the following piece of DNA?AAATGCCTCATAC

  1. ASY
  2. HPM
  3. KCLI
  4. LCLI
  5. MPH
  6. NASY
  7. None of the above

  5
• The genetic code is degenerate because...

  1. None of the above.
  2. you can translate from RNA to protein, but you cannot determine the exact RNA sequence from a given protein sequence.
  3. you can translate from the protein sequence to the exact RNA sequence, but you cannot derive the DNA sequence from the RNA sequence.
  4. you cannot translate to a direct protein sequence from the DNA sequence.

  2
• Which of the following statements are true for eukaryotes?

  1. Multiple ribosomes will bind to the mRNA at the same time.*
  2. The RNA does not undergo processing to produce the mature mRNA.
  3. The mRNA encodes for multiple proteins.
  4. The mRNA only encodes for one protein.
  5. The start methionine is never removed from the final protein.

  1 and 4
• Complete the following sentence: The wobble base is the...

  1. None of the above complete the sentence.
  2. fifth nucleotide in the codon.
  3. first nucleotide in the codon.
  4. fourth nucleotide in the codon.
  5. second nucleotide in the codon.
  6. third nucleotide in the codon.

  6
• Which of the following are true about tRNAs?

  1. The enzyme aminoacyl-tRNA synthetases attach the amino acid to the tRNA.
  2. There is a unique tRNAs for each codon.
  3. There is only one type of aminoacyl-tRNA synthetases.
  4. tRNA stands for transfer RNA.
  5. tRNA stands for transferable RNA.
  6. tRNA stands for transmitted RNA.
  7. tRNAs for a clover leaf-like structure.

  1, 2, 4, 7
• Complete the following sentence: The growing peptide chain has...

  1. amino acids added to either end of the peptide chain.
  2. amino acids added to the C-terminal end of the peptide chain.
  3. amino acids added to the N-terminal end of the peptide chain.
  4. tRNAs acids added to either end of the peptide chain.
  5. tRNAs acids added to the C-terminal end of the peptide chain.
  6. tRNAs acids added to the N-terminal end of the peptide chain.

  2
• Which of the following are true about ribosomes?

  1. Ribosomes are made of protein and DNA.
  2. Ribosomes are only found attached to the ER.
  3. Ribosomes are only found in the cytosol.
  4. Ribosomes can be found attached to the ER or in the cytosol.
  5. Ribosomes consist of two protein subunits.

  4 and 5