In viruses with envelopes the envelope and the embedded proteins are encoded by the viral nucleic acid the envelope is derived from the host but it contains embedded proteins coded by the viral nucleic acid the envelope is coded by the viral nucleic acids, but the proteins come from the host's membrane proteins the envelope and its imbedded proteins are derived from the host's membranes TRUE ANSWER : ? YOUR ANSWER : ?
T-even phage binding to E. coli probably involves electrostatic interaction covalent bonds hydrophobic interaction all of these TRUE ANSWER : ? YOUR ANSWER : ?
The process by which phage reproduction is initiated in lysogenized culture is called induction repression infection integration TRUE ANSWER : ? YOUR ANSWER : ?
Area of lysis on a bacterial lawn culture produced by a phage is known as pock plaque all of these pox TRUE ANSWER : ? YOUR ANSWER : ?
__________ is specifically able to have a long-term relationship with the host known as lysogeny. Adsorbed virus DNA phage Temperate virus RNA phage TRUE ANSWER : ? YOUR ANSWER : ?
One of the first enzymes synthesized by many bacteriophage is __________ , an RNA-dependent RNA polymerase. RNA transcriptase RNA polymerase RNA ligase RNA replicase TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following bacteria can be typed by phage typing method? Salmonella typhi Vibrio cholerae Staphylococcus aureus All of these TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is/are synthesized from late mRNA? Proteins that help with phage assembly without becoming part of the virion structure Phage structural proteins Proteins involved in cell lysis and phage release All of these TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following properties is due to lysogenic conversion by phages? Antigenic variation in Salmonella anatum Toxin production in Clostridium botulinum types C and D Toxin production in Corynebacterium diphtheriae All of these TRUE ANSWER : ? YOUR ANSWER : ?
A bacterial defense mechanism against bacteriophage is called restriction lysogeny concatamerization polymerization TRUE ANSWER : ? YOUR ANSWER : ?