Gene X Encodes an Enzyme Subunit

Short Answer

Gene X encodes an enzyme subunit.A researcher is studying an allele of gene X that does not produce a protein product.Experiments show that the pre-mRNA transcript undergoes RNA processing and is successfully transported out of the nucleus.However, in the cytoplasm, the mRNAs accumulate without binding to ribosomes.These results suggest a problem with the addition of the _______ to the pre-mRNA.