Statement 1: In eukaryotes, the 3' end of pre-mRNA is modified by the addition of a poly-A tail, which is essential for its export to the cytoplasm.
Statement 2: The poly-A tail is synthesized by RNA polymerase I.
Which of the following is true?
1
Both statements are true.
2
Statement 1 is true; Statement 2 is false.
3
Statement 1 is false; Statement 2 is true.
4
Both statements are false.