Suppose DNA polymerase synthesizes DNA at a rate of1130 bases per minute in a newly discovered bacteria andthat bacteria replicates their chromosome every 40 min.3'Sugar-phosphatebackboneCalculate the total number of nucleotides in thebacterial chromosome.number of nucleotides:F0.34 nmA TCalculate the length of the entire bacterial chromosomeusing the appropriate information from the diagram of DNA.- 3.4 nmlength:nm3'2 nm

The polymeric molecule deoxyribonucleic acid (DNA) contains repeating nucleotides. Each nucleotide contains any of the nitrogenous bases like cytosine (C), adenine (A), thymine (T), and guanine (G). The replication of DNA occurs during cell division to create new copies that can be transmitted to the daughter cells. The enzyme that performs DNA replication is known as DNA polymerase.In a newly discovered bacterium, the DNA polymerase enzyme perform DNA synthesis at the rate of 1130 bases per minute. This means it adds 1130 nucleotide bases in one minute to the 3’ end of the replicating strand. The chromosome replication occurs after every 40 minutes. This means the total time taken by the bacterium to replicate its DNA is 40 minutes. The total number of nucleotides in the chromosome of this bacterium = DNA synthesis rate x total time taken in DNA replication. The total number of nucleotides in the chromosome of this bacterium = 1130 nucleotide bases per minute x 40 minutes = 45200 nucleotides. Therefore, there are 45200 nucleotides in the chromosome. In the given diagram of the DNA double helix, the helix rise per base pair is 0.34 nm (nanometer). This indicates that with every base pair addition the length increases by 0.34 nm. The given chromosome has 45200 nucleotides and will form 45200 base pairs in a double-helical conformation. The length of chromosome = total number of base pairs x helix rise per base pair The length of chromosome = 45200 x 0.34 nm = 15368 nm. Therefore, the length of chromosome is 15368 nm.