Which type of plasmid can exist with or without being integrated into the host's chromosome? Lisosome Lysogen Episome Medisome TRUE ANSWER : ? YOUR ANSWER : ?
When composite transposons are formed two IS elements integrate into a chromosome with only a small distance separating them a small deletion occurs in the transposase gene of an IS element a small deletion occurs in the transposase gene of an IS element and plasmid is integrated an IS element integrates with another IS element with the help of a plasmid TRUE ANSWER : ? YOUR ANSWER : ?
The plasmids can be eliminated from a cell by the process known as breaking curing fixing expulsion TRUE ANSWER : ? YOUR ANSWER : ?
Who discovered transposons (jumping genes)? Griffith Harvey McClintock Abelson TRUE ANSWER : ? YOUR ANSWER : ?
The transducing particles carry only specific portions of the bacterial genome in which of the following transduction? None of these Specialized transduction Abortive transduction General transduction TRUE ANSWER : ? YOUR ANSWER : ?
The main difference between a self-transmissible and a mobilizable plasmid is that the self-transmissible plasmid transfers both strands of the plasmid DNA usually has a transposon inserted into it carries genes encoding the mating apparatus transfers antibiotic resistance genes TRUE ANSWER : ? YOUR ANSWER : ?
The expression of gene X (which has promoter Px) is to be monitored. A gene fusion construction for carrying this work will allow to monitor the expression of all genes with a promoter similar in sequence to Px have the promoter of lacZ or some other reporter gene give the same information as from a microarray have Px but not the rest of the X coding region TRUE ANSWER : ? YOUR ANSWER : ?
Recombination of virus genomes occurs by transformation simultaneous infection of a host cell by two viruses with homologous chromosomes by transduction by transription TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following plamids do not possess information for self transfer to another cell? Conjugative plasmids None of these Cryptic plasmids Non-conjugative plasmids TRUE ANSWER : ? YOUR ANSWER : ?
In lysogeny, bacteria take up double stranded DNA from the environment DNA-degrading enzymes in the extracellular medium would stop the process a bacteriophage transfers bacterial DNA a bacteriophage genome is integrated into the bacterial genome TRUE ANSWER : ? YOUR ANSWER : ?