For most bacteria, the optimum pH for growth lies between 5.5-6.5 3.5-4.5 4.5-5.5 6.5-7.5 TRUE ANSWER : ? YOUR ANSWER : ?
The protoplast can be used to modify genetic information all of these create plant hybrid study plant viral infections TRUE ANSWER : ? YOUR ANSWER : ?
Stringent anaerobes can be grown in a media by taking special measure as any of these addition of cysteine passing through oxygen-free nitrogen boiling the media for several minutes TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is the necessary step for cultivating the microorganisms? Sterilizing in order to eliminate all living microorganisms in vessel Preparing a culture medium for the growth of microorganisms Inoculating the microorganisms in the prepared medium All of these TRUE ANSWER : ? YOUR ANSWER : ?
The cell mass can be measured optically by determining the amount of light scattered by a suspension of cells. The measurements are usually at a wavelength of 500-600nm 600-700nm 300-400nm 400-500nm TRUE ANSWER : ? YOUR ANSWER : ?
Anchorage -dependent cells require dry surface for growth nothing to do with the surface either (a) or (b) wettable surface for growth TRUE ANSWER : ? YOUR ANSWER : ?
Callus cultures are amorphous cell aggregates arising from the unorganized growth of explants on an liquid medium solid nutrient medium aseptic solid nutrient medium solid or liquid medium 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 cellulose succinate none of these certain antibiotics TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not an indirect method for the measurement of cell mass? Cell dry weight Viscosity Heat evolution Nutrient composition TRUE ANSWER : ? YOUR ANSWER : ?
Thiobacillus thiooxidans has an optimum pH of 2.0-3.5 9.0-9.5 0.5-6.0 6.5-7.5 TRUE ANSWER : ? YOUR ANSWER : ?