Italy, though an Allied Power during World War I, joined the Axis Powers under the leadership of Benito Mussolini, only to depose Mussolini in 1943 and fight the German occupation of their northern territories. The inclusion of Japan into the Axis Powers made China join the Allied Powers.
Lecture 2: Virus Structure. All viruses contain the following two components: 1) a nucleic acid genome and 2) a protein capsid that covers the genome. Together this is called the nucleocapsid. In addition, many animal viruses contain a 3) lipid envelope.
A virus consists of two or three parts: genes, made from either DNA or RNA, long molecules that carry genetic information; a protein coat that protects the genes; and in some viruses, an envelope of fat that surrounds and protects them when they are not contained within a host cell.iruses spread in many ways. Just as many viruses are very specific as to which host species or tissue they attack, each species of virus relies on a particular method for propagation. Plant viruses are often spread from plant to plant by insects and other organisms, known as vectors.