Question

imagine you're playing around in the lab again, and you take an mrna molecule, remove its 5' cap and poly-a tail, and then insert it into a eukaryotic cell. what would you expect to find? question 16 options: the molecule attaches to a ribosome and is translated, but more slowly. the mrna could not exit the nucleus to be translated. the cell recognizes the absence of the tail and polyadenylated the mrna. the molecule is digested by exonucleases since it is no longer protected at the 5' end. the molecule is digested by restriction enzymes in the nucleus.

Answer 1

Removing the 5' cap and poly-A tail from an mRNA molecule leads to its degradation by exonucleases in a eukaryotic cell, as these features are critical for mRNA stability and nuclear export.

Step-by-step explanation:

If you remove the 5' cap and the poly-A tail from an mRNA molecule and then insert it into a eukaryotic cell, the most likely outcome is that the molecule would be digested by exonucleases since it is no longer protected at the 5' end. The 5' cap and poly-A tail are crucial for the stability and export of mRNA from the nucleus to the cytoplasm. Without these modifications, the mRNA is susceptible to degradation, and its stability within the cell is compromised, preventing it from being effectively translated into protein.