Correct Answer: A
Explanation:
Bacterial genomes are usually contained within a single circular chromosome or nucleoid region of the cell. Since only one chromosome is normally present, the cell is haploid. The replication of DNA occurs by a semiconservative mechanism with each of the newly formed DNA strands being made up of one parental DNA strand and one daughter DNA strand. Introns are a general feature of eukaryotic genes and also occur in some archaea but not in bacteria.