Which of the following correctly describes exons and introns?
A) Both exons and introns code for proteins, but they code for different types of proteins.
B) Exons are coding sections of DNA, and introns are noncoding sections.
C) Exons are noncoding sections of DNA, and introns are coding sections.
D) To code for a protein, both an exon and an intron are necessary.

Question

Quizplus · Accepted Answer

Exons are sections of DNA that contain the coding information for a protein, while introns are noncoding sections that are transcribed but then removed through RNA splicing before the final protein is produced. Therefore, choice B correctly describes the difference between exons and introns.

Which of the Following Correctly Describes Exons and Introns