Potential protein-coding regions of genomic DNA containing long stretches of nucleotide sequences that can encode polypeptides and contain no stop codons are called
A) introns.
B) exons.
C) pseudogenes.
D) open-reading frames.

Question

Quizplus · Accepted Answer

Potential protein-coding regions of genomic DNA that contain long stretches of nucleotide sequences that can encode polypeptides and contain no stop codons are called open-reading frames (ORFs). Introns are non-coding regions of DNA within genes that are removed during RNA splicing, while exons are the coding regions of DNA that remain after introns have been removed. Pseudogenes are non-functional copies of genes that have accumulated mutations over time.

Potential Protein-Coding Regions of Genomic DNA Containing Long Stretches of Nucleotide