Viruses are obligate parasites. They cannot reproduce outside living cells. Therefore, they are considered obligate intracellular parasites. They infect a host cell to use its genetic machinery to produce energy, synthesize proteins, and replicate.

Viruses are obligate parasites. They cannot reproduce outside living cells. Therefore, they are considered obligate intracellular parasites. They infect a host cell to use its genetic machinery to produce energy, synthesize proteins, and replicate.
You must log in to post a comment.