Which of the following growth regulator cause plant cells to grow? Cytokinins Auxins Gibberellins Brassinosteroids TRUE ANSWER : ? YOUR ANSWER : ?
Silver thiosulphate is added to culture medium as it helps to maintain the pH prevent the gaseous plant hormone, ethylene dioxide from accumulating to detrimental condition. remove toxic phenolics from plant cells All of these TRUE ANSWER : ? YOUR ANSWER : ?
Which is the most common carbon source used in the plant cell culture media? Fructose Sucrose Maltose Glucose TRUE ANSWER : ? YOUR ANSWER : ?
Nitrogen in the plant cell culture media is provided by either ammonia or nitrate salt. In the media utilization of both ammonium and nitrate result in drop in pH utilization of both ammonium and nitrate result in rise in pH utilization of nitrate cause culture pH to drop while utilization of ammonium cause culture pH to rise utilization of ammonium cause culture pH to drop while utilization of nitrate cause culture pH to rise TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not true about nurse or conditioned medium? It contains uncharacterized growth factor released by growing cells It is used in the culture of regenerating protoplast it is removed aseptically from the culture and is autoclaved before use It is liquid removed from the suspension of fast growing cells TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following growth regulator is added for short initiation during plant regeneration from callus? Brassinosteroids Cytokinins Gibberellins Auxins TRUE ANSWER : ? YOUR ANSWER : ?
Which is/are the disadvantage/(s) of using IAA in plant cell culture media? All of these It is unstable in solution Gets easily oxidized Conjugated to inactive form by plant cells TRUE ANSWER : ? YOUR ANSWER : ?
In plant cell culture media, auxins and cytokinins are used in the range of 100-125μM more than 125μM 50-100μM l-50μM 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 : ?
Neutralized activated charcoal is occasionally added to young regenerating cultures to help to remove plants growth regulators introduced at an earlier stage both (a) and (b) remove toxic phenolics produced by the stressed plant cell maintain the pH of the medium TRUE ANSWER : ? YOUR ANSWER : ?