Respuesta :
During DNA sequencing, the codon created is paired by its complementary called the anticodon. The codon is made up of nitrogen bases. Adenine is paired with uracil; uracil paired with thymine, thymine paired with adenine, glycine paired with cystine. The answer is A.
Answer:
The scientist wants to know what type of bases are added to the growing mRNA by the RNA polymerase then it would be bases complementary to the template DNA.
Explanation: