A Eukaryotic Transcription Unit That Is 8,000 Nucleotides Long May

Multiple Choice

A eukaryotic transcription unit that is 8,000 nucleotides long may use 1,200 nucleotides to make a protein consisting of approximately 400 amino acids. This is best explained by the fact that

A) many noncoding stretches of nucleotides are present in eukaryotic DNA.
B) there is redundancy in the genetic code.
C) many nucleotides are needed to code for each amino acid.
D) there are termination exons near the beginning of mRNA.