Alternative splicing enables exons to be spliced together in different combinations to yield mRNAs that encode different proteins. Alternative 3' cleavage sites allow pre-mRNA to be cleaved at different sites.
-Alternative 3' cleavage sites result in
A) multiple genes of different lengths.
B) multiple pre-mRNAs of different lengths.
C) multiple mRNAs of different lengths.
D) all of the above.

Question

Quizplus · Accepted Answer

Alternative 3' cleavage sites result in the production of multiple mRNAs of different lengths, as the pre-mRNA is cleaved and polyadenylated at different sites, leading to variations in the 3' untranslated region or even the coding sequence.

Alternative Splicing Enables Exons to Be Spliced Together in Different