Multiple choice

Harmone pair for callus development

  1. Auxi and GA

  2. GA and ethylene

  3. Auxin and Cytokinine

  4. Auxin and ABA

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

Auxins and cytokinins are the two primary classes of plant hormones used in tissue culture. Their relative ratio determines whether cells form a disorganized mass (callus), roots, or shoots.