Phage p1 has a double-stranded dna with 91500 base, Ask an Expert

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Phage P1 has a double-stranded DNA with 91,500 base pairs. A) How many full double helical turns does this DNA contain (assume it is in the B form)? B) How long is the DNA in microns (1 micron = 104 angstroms)? C) How many phosphorus atoms does the DNA contain?

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