Which of the following post-transcriptional modifications allow multiple forms of protein products from the same gene sequence?
A) phosphorylation
B) methylation
C) alternative splicing
D) poly-A tail
E) 5' nucleotide cap

Question

Which of the following post-transcriptional modifications allow multiple forms of protein products from the same gene sequence?  
A) phosphorylation
B) methylation
C) alternative splicing
D) poly-A tail
E) 5' nucleotide cap

Quizplus · Accepted Answer

Alternative splicing allows different combinations of exons within a gene to be included or excluded from the final mRNA transcript, resulting in variations in the protein products that can be produced from the same gene sequence. Phosphorylation, methylation, poly-A tail, and 5' nucleotide cap are all post-transcriptional modifications but they do not allow for multiple forms of protein products from the same gene sequence.

Which of the Following Post-Transcriptional Modifications Allow Multiple Forms of Protein