Which of the following modifications can occur to mRNA before it is translated?

Which of the following modifications can occur to mRNA before it is translated?

Step 1: Understand that mRNA is a type of RNA that carries genetic information from DNA to the ribosome for protein synthesis.
Step 2: Learn that before mRNA can be translated into a protein, it undergoes several modifications.
Step 3: Identify the first modification called '5' capping', where a special cap is added to the beginning of the mRNA strand to protect it and help it be recognized by the ribosome.
Step 4: Recognize the second modification called '3' polyadenylation', where a tail of adenine nucleotides (poly-A tail) is added to the end of the mRNA to protect it and assist in the export from the nucleus.
Step 5: Understand the third modification called 'RNA splicing', where non-coding regions (introns) are removed from the mRNA, and the coding regions (exons) are joined together to form a continuous sequence that can be translated into a protein.
Step 6: Conclude that all these modifications (5' capping, 3' polyadenylation, and RNA splicing) are necessary for the mRNA to be properly processed before it is translated into a protein.

No concepts available.