객관식
Approximately what percentage of the human genome is made up of viral DNA sequences?
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17. Viruses
Viruses
객관식
Which feature do viruses have in common with animal cells?
A
Presence of a lipid bilayer
B
Presence of a nucleus
C
Ability to perform photosynthesis
D
Ability to reproduce independently
검증된 단계별 안내1
Identify the key features of animal cells: Animal cells have a lipid bilayer, a nucleus, and some have specialized organelles, but they do not perform photosynthesis.
Understand the structure of viruses: Viruses are composed of genetic material (DNA or RNA) surrounded by a protein coat, and some have an outer lipid bilayer called an envelope.
Compare the features: Both animal cells and some viruses have a lipid bilayer. Animal cells have a nucleus, but viruses do not. Viruses cannot perform photosynthesis or reproduce independently; they require a host cell for reproduction.
Eliminate incorrect options: Since viruses do not have a nucleus, cannot perform photosynthesis, and cannot reproduce independently, these options can be eliminated.
Conclude with the common feature: The presence of a lipid bilayer is the feature that viruses have in common with animal cells.
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