Biology / Bio 1909 · Atom · ~20 seconds
The Baltimore Classification Logic
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Baltimore classification sorts viruses into groups by how each genome type is converted into messenger RNA during replication, not by shape or host.
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A double-stranded DNA virus transcribes mRNA; a single-stranded RNA virus first needs an enzyme to build a complementary strand.
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Two viruses sharing a genome type can land in different Baltimore groups if their mRNA-production route differs.