Multiple choice

An unorganized mass of cells that gives rise to whole new plant in tissue culture is termed as _______________.

  1. rootlet

  2. shootlet

  3. plantlet

  4. callus

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A callus is an unorganized, proliferating mass of parenchyma cells formed in tissue culture that can differentiate into shootlets and rootlets to form complete plantlets. Rootlet, shootlet, and plantlet are all organized structures that develop FROM the callus, not the initial undifferentiated mass itself.