Question

17. When transcription occurs in eukaryotic cells, a DNA strand is copied to an mRNA strand that contains introns and exons. Which of the two is needed for the

production of proteins, and why?
Exons because they are coding sequences.
Introns because they are non-coding sequences.
Introns because they are coding sequences.
Exons because they are non-coding sequences

Answer 1

Exons because they are coding sequences

Step-by-step explanation:

The sections of DNA (or RNA) that code for proteins are called exons.