Very high sugar concentration (40-100 g/l) have been used none of these in specialized secondary metabolite production Both (a) and (b) to adjust the osmotic potential of the media in short term treatment for regeneration TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following growth regulator is added for short initiation during plant regeneration from callus? Cytokinins Gibberellins Brassinosteroids Auxins TRUE ANSWER : ? YOUR ANSWER : ?
Silver thiosulphate is added to culture medium as it helps to maintain the pH remove toxic phenolics from plant cells All of these prevent the gaseous plant hormone, ethylene dioxide from accumulating to detrimental condition. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not true about nurse or conditioned medium? it is removed aseptically from the culture and is autoclaved before use It contains uncharacterized growth factor released by growing cells It is liquid removed from the suspension of fast growing cells It is used in the culture of regenerating protoplast TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not a cytokinin? 6 benzylaminopurine Zeatin Kinetin 2,4-dichlorophenoxyacetic acid TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following growth regulator cause plant cells to grow? Brassinosteroids Gibberellins Cytokinins Auxins TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is an ethylene biosynthesis inhibitor? Activated charcoal Succinic acid Silver thiosulphate Citric acid TRUE ANSWER : ? YOUR ANSWER : ?
What are the macronutrients used in plant cell culture medium? N, P, K, Ca, Cl N, P, Ca, Na, Cl N, P, K, S, Ca N, P, K, S, Na TRUE ANSWER : ? YOUR ANSWER : ?
Which is/are the naturally occurring plant auxins? Indole acetic acid (IAA) Naphthalenacetic acid (NAA) All of these 2,4-dichlorophenoxyacetic acid TRUE ANSWER : ? YOUR ANSWER : ?
Concentration of sucrose generally used in plant cell culture media is 60-70 g/l 40-50 g/l 10-15 g/l 20-30 g/l TRUE ANSWER : ? YOUR ANSWER : ?