BIOLOGICAL CLASSIFICATION
VIRUSES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Their genetic material is surrounded by a nucleus
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They contain many complex organelles
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They contain DNA or RNA
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They are surrounded by capsids
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Detailed explanation-1: -The genetic material of viruses can be composed of DNA or RNA. All living cells, whether human, animal, plant, or bacterial, have double-stranded DNA (dsDNA) as their genetic material. Viruses, on the other hand, have genomes, or genetic material, that can be composed of DNA or RNA (but not both).
Detailed explanation-2: -Viruses are smaller and simpler in construction than unicellular microorganisms, and they contain only one type of nucleic acid-either DNA or RNA-never both.
Detailed explanation-3: -Unlike cells (e.g. bacteria, plant and animal cells), viruses contain either DNA or RNA, never both; the viral nucleic acid is either single or double stranded. Viruses with a DNA core are capable of surviving in the nucleus of the cell they infect, using the host’s biochemical machinery to replicate their DNA.
Detailed explanation-4: -Although viruses are not classified as living things, they share two important traits with living things. They have genetic material, and they can evolve.