Which of the following statements about translation in prokaryotes are true?
  • Initiation
  • In eukaryotes, mRNAs are much longer lived than prokaryotesIn eukaryotes, most mRNAs exist for hours rather than minutes prior to degradation by nucleases in the cell; thus they remain available much longer to orchestrate protein synthesis.
  • 3' endThe 3′ end of a tRNA molecule contains the amino acid binding site.
  • It attaches a specific amino acid to a tRNA moleculeAminoacyl tRNA synthetase catalyzes the charging reaction that links a specific amino acid to a tRNA molecule.
Assume that a base addition occurs early in the coding region of a gene. Is the protein product of this gene expected to have more or fewer altered amino acids compared with the original gene with a base deletion late in the coding region?
  • True
  • A, P ,E
  • more
  • tRNA
Which region of a tRNA molecule binds to amino acids?
  • In eukaryotes, mRNAs are much longer lived than prokaryotesIn eukaryotes, most mRNAs exist for hours rather than minutes prior to degradation by nucleases in the cell; thus they remain available much longer to orchestrate protein synthesis.
  • 3' endThe 3′ end of a tRNA molecule contains the amino acid binding site.
  • It attaches a specific amino acid to a tRNA moleculeAminoacyl tRNA synthetase catalyzes the charging reaction that links a specific amino acid to a tRNA molecule.
  • aminoacyl-tRNA synthetase
Which of the following statements best describes the function of aminoacyl tRNA synthetase?
  • 3' endThe 3′ end of a tRNA molecule contains the amino acid binding site.
  • It attaches a specific amino acid to a tRNA moleculeAminoacyl tRNA synthetase catalyzes the charging reaction that links a specific amino acid to a tRNA molecule.
  • In eukaryotes, mRNAs are much longer lived than prokaryotesIn eukaryotes, most mRNAs exist for hours rather than minutes prior to degradation by nucleases in the cell; thus they remain available much longer to orchestrate protein synthesis.
  • attached to the tRNA occupying the A site
The RNA that has the amino acid attached to it and that binds to the codon on the mRNA
  • translation
  • termination
  • tRNA
  • True
A protein is 300 amino acids long. Which of the following could be the number of nucleotides in the section of DNA that codes for this protein?
  • True
  • 1800
  • more
  • tRNA
Amino acids are attached to the tRNA by enzymes called ___________
  • rRNA,tRNA, mature mRNA
  • aminoacyl-tRNA synthetase
  • snRNA, pre-mRNA
  • Initiation
________ of translation always happens at the start codon of the mRNA
  • Initiation
  • termination
  • translation
  • aminoacyl-tRNA synthetase
When a peptide bond is formed between 2 amino acids, one is attached to the tRNA occupying the P site and the other is
  • It attaches a specific amino acid to a tRNA moleculeAminoacyl tRNA synthetase catalyzes the charging reaction that links a specific amino acid to a tRNA molecule.
  • aminoacyl-tRNA synthetase
  • attached to the tRNA occupying the A site
  • translation
Once elongation is under way, tRNAs involved in the process occupy a series of sites on the complexed ribosome . The occupation of sites occur in the following order
  • False
  • more
  • True
  • A, P ,E
The process, performed by the ribosome, of reading mRNA and synthesizing a protein is called
  • Initiation
  • translation
  • termination
  • tRNA
_______ of translation happens when the ribosome hits a stop codon on the mRNA
  • translation
  • tRNA
  • termination
  • Initiation
What is not used in protein synthesis?
  • snRNA, pre-mRNA
  • RNA primers
  • Initiation
  • rRNA,tRNA, mature mRNA
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