Answer:
The number of artificial mRNA 3 nucleotide codons that would be possible is eight (8), which are: AAA, AAG, AGA, GAA, AGG, GGA, GAG, and GGG.
Explanation:
The arrangement of the nucleotides within the codon permit repetition. The adenosine triphosphate is designated as A, while the guanosine triphosphate as G. The possible number of codons that can be formed from this two available nucleotides is 2 to the power of 3 = 8
These codons are: AAA, AAG, AGA, GAA, AGG, GGA, GAG, and GGG.
If untreated sewage gets into rivers, microorganisms decompose it. They use oxygen from the water for aerobic respiration. As a result there is less oxygen dissolved in water, so aquatic organisms such as fish and insects may be unable to survive.
Your answer should be B) introduction of the terminator gene.