D.uracil is the nitrogen base bind with adenine
Answer C i think because it comes from both i hope this helps.
Answer A)
The gene would not be transcribed. This is because the gene transcribing machinery would not be activated if the promoter sequence is not recognized. Transcription will not start.
Answer B)
The gene would not be transcribed. This will result in no RNA polymerase being formed. Hence, transcription and translation will not occur.
Answer C)
The mRNA would contain intron sequences, which would be translated into extra amino acids in the protein. A non- functional protein would be made.
Answer:
The aorta.
Explanation:
The right coronary artery supplies blood mainly to the right side of the heart.