Thiobacillus thiooxidans has an optimum pH of 6.5-7.5 9.0-9.5 0.5-6.0 2.0-3.5 TRUE ANSWER : ? YOUR ANSWER : ?
Anchorage -dependent cells require dry surface for growth wettable surface for growth either (a) or (b) nothing to do with the surface TRUE ANSWER : ? YOUR ANSWER : ?
Stringent anaerobes can be grown in a media by taking special measure as any of these boiling the media for several minutes passing through oxygen-free nitrogen addition of cysteine TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is the necessary step for cultivating the microorganisms? Inoculating the microorganisms in the prepared medium Sterilizing in order to eliminate all living microorganisms in vessel Preparing a culture medium for the growth of microorganisms All of these TRUE ANSWER : ? YOUR ANSWER : ?
The archaebacterium Halobacterium, an extreme halophile, and Sulfolobus, a thermoacidophile, can be cultured in the presence of antibiotics such as streptomycin and chloramphenicol because they contain ether-linked isoprenoids in their plasma membrane they contain 80S, as opposed to 70S, ribosomes they lack murein in their cell wall All of these TRUE ANSWER : ? YOUR ANSWER : ?
The protoplast can be used to study plant viral infections create plant hybrid modify genetic information all of these TRUE ANSWER : ? YOUR ANSWER : ?
Callus cultures are amorphous cell aggregates arising from the unorganized growth of explants on an solid nutrient medium solid or liquid medium aseptic solid nutrient medium liquid medium TRUE ANSWER : ? YOUR ANSWER : ?
Balanced growth is defined as cultures undergoing balanced growth while maintaining a constant chemical composition balancing the growth while changing the nutrient composition balancing the growth while controlling the pH balancing the growth while controlling the temperature TRUE ANSWER : ? YOUR ANSWER : ?
The isolation of the gonorrhoea - causing organisms, Neisseria gonorrhoeae,from a clinical specimen is facilitated by the use of media containing none of these cellulose succinate certain antibiotics TRUE ANSWER : ? YOUR ANSWER : ?
Radical shifts in pH can be prevented by incorporating a buffer an oxidizing agent a reducing agent any of these TRUE ANSWER : ? YOUR ANSWER : ?