Which of the following chemotherapeutic agents may affect the growth of Campylobacter jejuni? None of these Trimethoprim Vacomycin Polymyxin TRUE ANSWER : ? YOUR ANSWER : ?
For the selection of lactobacilli present in cheddar cheese, the pH of the medium is maintained at 4.35 5.35 6.35 5.75 TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following techniques may be performed quantitatively to determine the number of bacteria of a particular type? Spread plate Both (a) and (b) Streak plate technique Pour plate TRUE ANSWER : ? YOUR ANSWER : ?
Stuart's transport medium is used for transport of specimen containing Salmonella Neisseria gonorrhoeae Vibrio cholerae Shigella TRUE ANSWER : ? YOUR ANSWER : ?
All bacteria that inhabit the human body are phototroph autotrophs chemolithotrophs heterotrophs TRUE ANSWER : ? YOUR ANSWER : ?
A medium containing crystal violet dye plus sodium deoxycholate will allow aquatic bacteria to grow gram (-)ve intestinal bacteria to grow none of these gram (+)ve intestinal bacteria to grow TRUE ANSWER : ? YOUR ANSWER : ?
Treponema species from human oral cavity can be selected by using incubation temperature pH of the medium cell size and motility all of these TRUE ANSWER : ? YOUR ANSWER : ?
Cell counting can be carried out by plate counting membrane filter count All of these direct microscopic count using petroffhansser counting chamber TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following problem makes it impossible to satisfy all of Koch's postulates? Genes from the microorganism cannot be amplified by PCR Microorganism causes serious symptoms in humans Species of microorganism is in question Microorganism cannot be isolated in pure culture TRUE ANSWER : ? YOUR ANSWER : ?
When a substance is added to a solid medium which inhibits the growth of unwanted bacteria but permits the growth of wanted bacteria, it is known as enriched medium differential medium enrichment medium selective medium TRUE ANSWER : ? YOUR ANSWER : ?