The T4like bacteriophage JS98 has a DNA of molecular weight
The T4-like bacteriophage JS98 has a DNA of molecular weight 1.11 × 108 contained in a head about 100 nm long.
Calculate the length of the DNA (assume the molecular weight of a nucleotide pair is 650) and compare it with the length of the JS98 head.
Consult the online database Genome (www.ncbi.nlm.nih.gov/genome). What is the exact number of base pairs in the JS98 genome?
Solution
The DNA has 171,000 bp at 0.34nm/bp the DNA lenght is 58140 nm. The DNA is 600 times longer than the JS98 head. 170523 bps.

