Question

What is Callus in biology??​

Answer 1

Callus is defined as a group of cells derived from competent source tissue that is cultured under in vitro conditions to form an undifferentiated mass of cells. From: Modern Applications of Plant Biotechnology in Pharmaceutical Sciences, 2015.

Answer 2

$\blue{\bold{\underline{\underline{Callus:}}}}$

a thickened and hardened part of the skin or soft tissue,especially in an area that has been subjected to friction.