Plant Cell Culture
The phenomenon of the reversion of mature cells to the meristematic state leading to the formation of callus is known as

none of these
dedifferentiation
either (a) or (b)
redifferentiation

ANSWER DOWNLOAD EXAMIANS APP

Plant Cell Culture
In a callus culture

auxins and cytokinins are not required
increasing level of auxin to a callus induces shoot formation and increasing level of cytokinin promote root formation
only auxin is required for root and shoot formation
increasing level of cytokinin to a callus induces shoot formation and increasing level of auxin promote root formation

ANSWER DOWNLOAD EXAMIANS APP