In an experimental situation, a student researcher inserts an mRNA molecule into the cytoplasm of a eukaryotic cell after she has removed its 5′ cap and poly-A tail. Which of the following would you expect her to find?
a) The mRNA attaches to a ribosome and is translated, but more slowly.
b) The cell adds a new poly-A tail
c) The mRNA is quickly spliced into an mRNA containing a 5’CAP and 3′ poly A
tail
d) The molecule is digested by enzymes because it is not protected at the 5′ end