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Studies on deoxyribonucleic acid purified from the granulosis virus of Trichoplusia ni have revealed the presence of a closed, double-stranded superhelix which sediments at 95S relative to relaxed circles (74S) and linear (60S) forms. Molecular weight estimates show that this insect virus deoxyribonucleic acid has a size of 100 x 10(6) daltons.
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