â30th and Main,â I replied. It was the home of one of Arielleâs book club friends, who Iâd overheard planning to âsurprise her.â Iâd never been there before, but with a little help of the internet I could easily figure out where her friend lived. Fox nodded and switched his car into gear.
bacteriophage. A bacteriophage is a type of virus that infects bacteria. In fact, the word bacteriophage literally means bacteria eater, because bacteriophages destroy their host cells.All bacteriophages are composed of a nucleic acid molecule that is surrounded by a protein structure.ventually, new bacteriophages assemble and burst out of the bacterium in a process called lysis. Bacteriophages occasionally remove a portion of their host cells' bacterial DNA during the infection process and then transfer this DNA into the genome of new host cells. This process is known as transduction.
The virus's developmental cycle begins with the entrance of the particle's nucleic acid, and in some cases its proteins, into a susceptible host cell. Bacterial viruses adsorb and firmly attach to the surface of the bacterium and then penetrate the rigid cell wall, transmitting the viral nucleic acid into the host.Animal viruses enter host cells by a process called endocytosis.y contrast, the smallest bacteria are about 400 nanometres in size. A virus consists of a single-or double-stranded nucleic acid and at least one protein surrounded by a protein shell, called a capsid; some viruses also have an outer envelope composed of fatty materials (lipids) and proteins.