Sets of transcription factor proteins buying a specific DNA sequences in or near a gene and promote or repress its transcription into RNA. Which i believe its C
The answer is A. C and G go together and A and T go together.
Answer:
Large scale industrial production of vitamin B12 occurs via microbial fermentation, predominantly utilizing Pseudomonas denitrificans, Propionibacterium shermanii, or Sinorhizobium meliloti [7].
Vitamin B12 is produced by microbial fermentation, using strains such as P. denitrificans and P. shermanii.