The correct answer is A
The anticodon of the tRNA hydrogen binds to the codon of the mRNA by complementary base pairing
The complementary base pairing:
If Codon of the mRNA is - 5' AGCTCA-3'
The anticodon of the tRNA would be - 3' GATCTG-5'
The Pros are that Doctors can help prevent certain diseases, help cure certain cancer, and help treatments get stronger.
The Cons is that someone people die from these injections, get an infection making a bigger disease, and or being cured but having killer side affects.
Answer:
arrow means next stage in a food chain.