Subculturing is similar to propagation by cuttings because it separates multiple microshoots and places them in a medium it uses scions to produce new microshoots All of these they both use in vitro growing conditions TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is considered as the disadvantage of conventional plant tissue culture for clonal propagation? Multiplication of sexually derived sterile hybrids Less multiplication of disease free plants Storage and transportation of propogates Both (b) and (c) TRUE ANSWER : ? YOUR ANSWER : ?
Agrobacterium based gene transfer is efficient only with monocots only with dicots with both monocots and dicots with majority monocots and few dicots TRUE ANSWER : ? YOUR ANSWER : ?
The ability of the component cells of callus to form a whole plant is known as redifferentiation dedifferentiation none of these either (a) or (b) TRUE ANSWER : ? YOUR ANSWER : ?
Protoplasts are the cells devoid of both cell wall and cell membrane cell membrane cell wall none of these TRUE ANSWER : ? YOUR ANSWER : ?
Protoplasts can be produced from suspension cultures, callus tissues or intact tissues by enzymatic treatment with pectolytic enzymes cellulotyic enzymes both cellulotyic and pectolytic enzymes proteolytic enzymes TRUE ANSWER : ? YOUR ANSWER : ?
What is meant by 'Organ culture' ? Maintenance alive of a whole organ, after removal from the organism by partial immersion in a nutrient fluid Introduction of a new organ in an animal body with a view to create genetic mutation in the progenies of that animal Cultivation of organs in a laboratory through the synthesis of tissues The aspects of culture in community which are mainly dedicated by the need of a specified organ of the human body TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is used in the culture of regenerating protoplasts, single cells or very dilute cell suspensions? Nurse or feeder culture Nurse medium None of these Both (a) and (b) TRUE ANSWER : ? YOUR ANSWER : ?
The phenomenon of the reversion of mature cells to the meristematic state leading to the formation of callus is known as either (a) or (b) redifferentiation dedifferentiation none of these TRUE ANSWER : ? YOUR ANSWER : ?
When plated only in nutrient medium, how much time is required for the protoplast to synthesize new cell wall? 5-10 days 15-17 days 2-5 days 10-15 days TRUE ANSWER : ? YOUR ANSWER : ?