In a callus culture only auxin is required for root and shoot formation auxins and cytokinins are not required increasing level of auxin to a callus induces shoot formation and increasing level of cytokinin promote root formation increasing level of cytokinin to a callus induces shoot formation and increasing level of auxin promote root formation TRUE ANSWER : ? YOUR ANSWER : ?
Cellular totipotency is the property of all of these animals plants bacteria TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is considered as the disadvantage of conventional plant tissue culture for clonal propagation? Both (b) and (c) Multiplication of sexually derived sterile hybrids Less multiplication of disease free plants Storage and transportation of propogates 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 None of these Both (a) and (b) Nurse medium 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 dedifferentiation either (a) or (b) none of these redifferentiation TRUE ANSWER : ? YOUR ANSWER : ?
A(n) __________ is an excised piece of leaf or stem tissue used in micropropagation. scion microshoot medium explant TRUE ANSWER : ? YOUR ANSWER : ?
The ability of the component cells of callus to form a whole plant is known as either (a) or (b) none of these redifferentiation dedifferentiation TRUE ANSWER : ? YOUR ANSWER : ?
Which method of plant propagation involves the use of girdling? Cuttings Micropropagation Grafting Layering TRUE ANSWER : ? YOUR ANSWER : ?
When plated only in nutrient medium, how much time is required for the protoplast to synthesize new cell wall? 10-15 days 5-10 days 2-5 days 15-17 days TRUE ANSWER : ? YOUR ANSWER : ?
Cell fusion method includes the preparation of large number of single plant cell stripped of their cell wall cells from different species plant cells with cell wall plant cells stripped of their cell wall TRUE ANSWER : ? YOUR ANSWER : ?