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.
1 Most viruses infect specific host cells ie are host specific. 2  Host specificity is due to: 3  specific attachment sites on the host cells called receptors. 4  Receptor sites for bacteriophage are found in bacterial cell walls or fimbrae or flagella.5  Animal cell membranes contain receptors for animal viruses. 20nm to 14000nm in size. 2  Most are smaller than bacteria (eg Adeno virus). 3  Vaccinia virus is the same size as the small bacteria like Mycoplasma, Rickettsia & Chlamydia. 4  Contain either DNA or RNA (never both) surrounded by a protein coat (capsid) and sometimes covered by an envelope.