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, undifferentiated mass of plant cells that forms in tissue culture. Under appropriate conditions with plant growth hormones (auxins and cytokinins), the callus can regenerate into a complete new plant through organogenesis or somatic embryogenesis. Rootlets, shootlets, and plantlets are more organized, differentiated structures.