337979
If a part of the pith from the stem of a plant is used as an explant and cultured on nutrient medium, which of the following processes is responsible for the formation of an undifferentiated mass of cells called callus?
1 Growth
2 Differentiation
3 Dedifferentiation
4 Redifferentiation
Explanation:
The living differentiated cells, that have lost the capacity to divide can regain the capacity of division under certain conditions. This phenomenon is termed as dedifferentiation. If a part pith from the stem of a plant is used as an explant and cultured on nutrient medium, dedifferentiation is responsible for the formation of an undifferentiated mass of cells called callus.
337979
If a part of the pith from the stem of a plant is used as an explant and cultured on nutrient medium, which of the following processes is responsible for the formation of an undifferentiated mass of cells called callus?
1 Growth
2 Differentiation
3 Dedifferentiation
4 Redifferentiation
Explanation:
The living differentiated cells, that have lost the capacity to divide can regain the capacity of division under certain conditions. This phenomenon is termed as dedifferentiation. If a part pith from the stem of a plant is used as an explant and cultured on nutrient medium, dedifferentiation is responsible for the formation of an undifferentiated mass of cells called callus.