Somaclonal variation mainly arises from...

Correct option is D

· Somaclonal Variation: It refers to genetic variation observed among plants regenerated from tissue culture.
· Tissue Culture Process: This variation occurs when plants are propagated through in vitro techniques under controlled laboratory conditions.
· Causes: It may result from mutations, chromosomal rearrangements, or stress during tissue culture.
· Applications: Somaclonal variation is useful for developing disease-resistant, stress-tolerant, and high-yielding crop varieties.