Biotechnology And Its Applications Question 2

Question: In tissue culture experiments, leaf mesophyll cells are put in a culture medium to form callus. This phenomenon may be called as:

(1) Differentiation

(2) Dedifferentiation

(3) Development

(4) Senescence

Show Answer

Answer: (2) Dedifferentiation

Explanation-

Dedifferentiation is the process by which specialized, differentiated cells revert to a more primitive, less specialized form. In tissue culture, this allows the cells to proliferate and form a callus, which is an undifferentiated mass of cells.