Subculturing is similar to propagation by cuttings because they both use in vitro growing conditions it separates multiple microshoots and places them in a medium All of these it uses scions to produce new microshoots TRUE ANSWER : ? YOUR ANSWER : ?
Protoplasts can be produced from suspension cultures, callus tissues or intact tissues by enzymatic treatment with pectolytic enzymes both cellulotyic and pectolytic enzymes proteolytic enzymes cellulotyic enzymes TRUE ANSWER : ? YOUR ANSWER : ?
In a callus culture increasing level of cytokinin to a callus induces shoot formation and increasing level of auxin promote root formation increasing level of auxin to a callus induces shoot formation and increasing level of cytokinin promote root formation auxins and cytokinins are not required only auxin is required for root and shoot formation TRUE ANSWER : ? YOUR ANSWER : ?
Organogenesis is genesis of organs formation of callus tissue both (a) and (b) formation of root and shoots on callus tissue TRUE ANSWER : ? YOUR ANSWER : ?
Which method of plant propagation involves the use of girdling? Micropropagation Grafting Cuttings Layering TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is considered as the disadvantage of conventional plant tissue culture for clonal propagation? Less multiplication of disease free plants Both (b) and (c) Multiplication of sexually derived sterile hybrids Storage and transportation of propogates TRUE ANSWER : ? YOUR ANSWER : ?
Which breeding method uses a chemical to strip the cell wall of plant cells of two sexually incompatible species? Mass selection Transpiration Protoplast fusion Transformation TRUE ANSWER : ? YOUR ANSWER : ?
A(n) __________ is an excised piece of leaf or stem tissue used in micropropagation. microshoot scion medium explant TRUE ANSWER : ? YOUR ANSWER : ?
What is meant by 'Organ culture' ? Cultivation of organs in a laboratory through the synthesis of tissues Maintenance alive of a whole organ, after removal from the organism by partial immersion in a nutrient fluid The aspects of culture in community which are mainly dedicated by the need of a specified organ of the human body Introduction of a new organ in an animal body with a view to create genetic mutation in the progenies of that animal TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is used in the culture of regenerating protoplasts, single cells or very dilute cell suspensions? Both (a) and (b) Nurse medium Nurse or feeder culture None of these TRUE ANSWER : ? YOUR ANSWER : ?