You are working in a pathology lab studying the virus Examinaria in mice. You collect the following information about two competing Examinaria strains, Aggressive and Mild: 1. Aggressive always out-competes Mild within a mouse for a payoff of 1. 2. Mild co-exists with Mild in a host for a payoff of 12. 3. Mild always loses to Aggressive for a payoff of 0. 4. Aggressive competing with Aggressive in a host leads to early death of the mouse and a payoff of only 14. Make a payoff matrix to solve this game. Based on the payoff matrix, is there one best Evolutionarily Stable Strategy (ESS) in this game? Yes, Aggressive is the ESS Yes, Mild is the ESS No, Mixed ESS

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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.