Klunk et al. (2022) reported in Nature a study examining the genomes of Europeans who lived through the Black Death back in the 1300s. Which of the following statements is true about this study? They recovered live microbes of the causative agent, Ebola, and were able to prove the specific source of the plague. O They found evidence that resistance to the black plague was directly tied to modern resistance to the coronavirus. They found nothing. All the researchers died mysteriously. They found that some genes which aided resistance to the plague are now sources of auto-immune diseases in modern populations.

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Viral Infections

Viruses are abundantly found, minute entities that have genetic material enclosed within a protein coat. The proteinaceous material enclosing the genetic material of the virus is called a capsid. The genetic material could be either DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). A virus is too minute to be looked at with naked eyes and therefore visualized with the help of a microscope. They are acellular entities that require a host for processes, such as replication, transcription, translation and multiplication. Plants, animals, and bacteria act as host wherein the virus reproduce. Viruses cannot multiply outside the host's body and thus are considered nonliving outside the host body.