Multiple choice

In tissue culture, callus refers to _______ mass of cells.

  1. differentiated

  2. undifferentiated

  3. regular

  4. solidified

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

In tissue culture, a callus is an undifferentiated mass of cells that forms from plant tissue explants. These cells have not specialized into specific tissue types (roots, stems, leaves) and can be induced to regenerate into whole plants through different media. This is the opposite of differentiated cells which have specific functions.

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