T even phage

The Russians developed a decent number of viruses to act as antibacterials. They're trying to get it more widely accepted as a treatment: http://www.phageinternational.com/phagetherapy/humantests.htm

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Try looking at the sections that describe how Benzer analyzed the fine structure of genes using bacteriophage. The parental strains will be the most common product--it doesn't require any recombination event to create the parentals. Since it is obvious from the data what the parental genotypes are, ...

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... been going crazy trying to find out how to begin answering the following. I've poured over my textbooks etc. and have really come up empty: Two T4 phage strains differing in the alleles at three genes (p, q, and r) were used to simultaneously infect e. coli cells. The following progeny were observed: ...

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... when they say that proteins are made of phosphorus? Additional evidence is this passage excerpted from the same book: "They tagged bacteriophages with the radioactive isotopes 32P and 35S. Since proteins contain sulfur but not phosphorous and DNA contains phosphorous but not sulfur, the ...

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... Biology by Campbell and Reece, 7th edition, on page 338 figure 18.6, it says that the "cell's DNA is hydrolyzed" under "2. entry of phage DNA and degradation of host DNA." My question is why and how is the "cell's DNA is hydrolyzed" accomplished.

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