Cilia<span> are slender, microscopic, hair-like structures or organelles that extend from the surface of nearly all mammalian cells. . </span>They<span> are primordial. ... 'Motile' (or moving) </span>cilia are found in the lungs, respiratory tract and middle ear. These cilia<span> have a rhythmic waving or beating motion (see right).</span>
<em>The lytic cycle of the viral life cycle is characterized by the destruction of the host's DNA. The infecting phage gains entrance into the host's cell synthesizes proteins that break down the host's DNA, and then utilizes its own DNA as the cellular DNA.</em>
From there on, the phage takes over the cell's genetic mechanisms and utilizes it in the synthesis of the necessary proteins to manufacture new infecting structures.