What Does It Mean If Genomic DNA Matches the Sequence

Question

What does it mean if genomic DNA matches the sequence of a cDNA?
A)The genomic DNA likely codes for a protein.
B)The genomic DNA likely codes for an rRNA.
C)The genomic DNA is likely part of an intron.
D)The genomic DNA is likely to be a regulatory sequence.
E)The genomic DNA is likely to be repetitive DNA.

Accepted Answer

cDNA is synthesized from mRNA, which typically only includes coding regions of the gene without introns. If the genomic DNA matches the sequence of the cDNA, it indicates that the coding sequence is present in the genomic DNA, and therefore likely codes for a protein.