Other questions in this quiz

2. What is the major difference between DNA and RNA?

  • All of the above
  • Most cellular RNAs re single stranded
  • RNA is made up of a ribonucleotide monomer
  • RNA contains uridine NOT thymidine

3. How is the 3' to 5' strand get synthesised?

  • The lagging strand is copied as short fragments which are joined using DNA ligase
  • The lagging strand is copied as RNA using a DNA primase
  • The leading strand is copied continuously using RNA polymerase
  • The leading strand is copied as short fragments started by RNA primers

4. How does the ribosome help form peptide bonds between amino acids?

  • C. by catalyzing the reaction using the 28S rRNA as a ribozyme
  • A. changes conformation to facilitate bond using the hydrolysis of GTP
  • A and C
  • B. by asking nicely for the AAs to hold hands

5. Peptide bonds do NOT exhibit which quality?

  • The chemical properties are determined by the nature of the side chain (polar, acidic etc)
  • Peptide bonds are panar but rotation exists around the alpha carbon
  • Are very weak and easily broken with low energy reactions
  • Are formed between the NH3 and COO- groups of 2 amino acids


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