[Campbell Biology P.411] Which of the following modifications is NOT typically part of RNA p... | Practice Question

Which of the following modifications is NOT typically part of RNA processing in eukaryotic cells?

  • A: Addition of a modified nucleotide 5' cap to the 5' end.
  • B: Addition of a poly-A tail to the 3' end.
  • C: Removal of exons and joining of introns.
  • D: RNA splicing to remove introns.

Explanation

The passage states: 'In RNA splicing, introns are removed and exons joined.' Option C incorrectly states 'Removal of exons and joining of introns', which is the reverse of what happens. Options A, B, and D all describe correct parts of eukaryotic RNA processing.