The portion of a DNA molecule that actually codes for proteins is called a(an)
A)intron.
B)exon.
C)sticky end.
D)codon.
E)primer.

Question

Quizplus · Accepted Answer

Exons are the portion of DNA that actually code for proteins. They are the sequences that are transcribed and translated into functional proteins. Introns, on the other hand, are non-coding sequences that are transcribed but are later removed during RNA processing. Sticky ends are a property of certain restriction enzymes used in genetic engineering, while codons are specific nucleotide sequences that encode for amino acids during protein synthesis. Primers are short pieces of nucleic acid used in PCR to initiate DNA replication.

The Portion of a DNA Molecule That Actually Codes for Proteins