Question : Answer question numbers on the basis of your understanding of the following paragraph and the related studied concepts : In tissue culture, new plants are grown by removing tissue or separating cells from the growing tip of a plant. The cells are then placed in an artificial medium where they divide rapidly to form a small group of cells or callus. The callus is transferred to another medium containing hormones for growth and differentiation. The plantlets are then placed in the soil so that they can grow into mature plants. Using tissue culture, many plants can be grown from one parent in disease-free conditions. This technique is commonly used for ornamental plants. From step B C, there is cell differentiation involved, which has led to formation of a complete plantlet ? Explain how is this achieved.

Question : Answer question numbers on the basis of your understanding

1.	Question : Answer question numbers on the basis of your understanding of the following paragraph and the related studied concepts : In tissue culture, new plants are grown by removing tissue or separating cells from the growing tip of a plant. The cells are then placed in an artificial medium where they divide rapidly to form a small group of cells or callus. The callus is transferred to another medium containing hormones for growth and differentiation. The plantlets are then placed in the soil so that they can grow into mature plants. Using tissue culture, many plants can be grown from one parent in disease-free conditions. This technique is commonly used for ornamental plants. From step B C, there is cell differentiation involved, which has led to formation of a complete plantlet ? Explain how is this achieved.
Answer» Solution :From step B `to C` the undifferentiated MASS of CELLS has undergone differentiation to form a plant. This is achieved by adding plant hormones to the nutrient medium.