If the sequence of a cDNA has matches with DNA sequences in the genome, then this genomic DNA could be described by which of the following statements?
A) The sequence codes for a protein.
B) The sequence codes for an rRNA.
C) The sequence is part of an intron.
D) The sequence is a regulatory sequence.

Question

Quizplus · Accepted Answer

cDNA is synthesized from mRNA, which is transcribed from exons that code for proteins. Therefore, if a cDNA sequence matches a genomic DNA sequence, it indicates that the genomic sequence likely codes for a protein.

If the Sequence of a CDNA Has Matches with DNA