Question

5 why is splicing important to the process of transcription? a splicing removes the unwanted information from the mrna strand b splicing cuts the mrna strand in haalf to make delivering genetic information easier c splicing helps the mrna strand copy the genetic code from dna d splicing removes the end caps from the mrna strand before it leaves the nucleus

Explanation:

Splicing is a process in which introns (unwanted non - coding regions) are removed from the pre - mRNA strand, and exons (coding regions) are joined together. This results in a mature mRNA strand that contains only the necessary information for protein synthesis.

• Option A: This is correct as splicing removes unwanted information (introns) from the mRNA strand.
• Option B: Splicing does not cut the mRNA strand in half. It removes specific non - coding regions (introns).
• Option C: The process of copying the genetic code from DNA to mRNA is transcription, not splicing. Splicing occurs after the initial transcription (pre - mRNA formation).
• Option D: End caps (5' cap and 3' poly - A tail) are added to the mRNA strand, not removed by splicing. Splicing is about removing introns.

Answer:

A. Splicing removes the unwanted information from the mRNA strand