This will begin where the start signal is on the mRNA, this codon will connect to make the first amino acid in the chain. The next codon will connect an amino acid to the first one. As more of the Amino acids are added they are connected together by peptide bonds. All the genes required for the normal functioning of the bacterium are carried on the double stranded circular chromosome. In addition to the chromosome, the bacterium may have plasmids.
Plasmids are small circular double stranded, extrachromosomal DNA molecules.
The information of the haemoglobin genes needs to be attained. The haemoglobin mRNA's, produced through transcription would be found in red blood cells. Because this is a specific cell for the production of haemoglobin, the mRNA found in that cell would be that for the coding of haemoglobin amino acids. A second enzyme DNA polymerase makes the cDNA into a double helix molecule. The result of this will be 2 HBA DNA and1 HBB DNA strands.