Question

before exiting the nucleus, the newly synthesized mrna has to remove select choice from the strand. the remaining coding sequences in the final mrna are called select choice .

Explanation:

The problem is about mRNA processing, which is related to molecular biology, a subfield of Biology (Natural Science). The newly synthesized mRNA (pre - mRNA) has to remove introns (non - coding sequences) and the remaining coding sequences are exons. So for the first "Select Choice" (what is removed), the answer is introns; for the second (what the remaining coding sequences are called), the answer is exons. But since the question's format is a bit unclear in the provided image, assuming the first blank is for what is removed (introns) and the second for what the coding sequences are called (exons).

Answer:

First "Select Choice": introns
Second "Select Choice": exons