Question

The technique of obtaining a large number of plantlets by tissue culture method is called as
A. Plantlet culture
B. Organ culture
C. Micropropagation
D. Macropropagation

Answer 1

This process of plant tissue culture is of great significance and importance as it may be utilized and used for cloning purposes, genetic modification of a given plant, or simply to accelerate or increase the yield of the plant of interest.

Complete answer: The tissue culture is referred to as the growth of tissues or cells in an artificial medium outside the parent organism under sterile conditions. The media can be liquid, semi-solid, or solid growth media that is made up of broth or agar. It is mostly used to generate clones of a plant.
The various types and advantages of tissue culture are as follows:
a) Micropropagation: It is a technique by which a large number of plantlets can be produced under artificial conditions. Micropropagation is defined as a technique of producing high yielding clonal plants (a clone is a group of identical cells). This has the ability to provide rapid and large-scale propagation of new genotypes. The nutrient media that is used in this method consists of auxin, cytokinin, hydrochloric acid, sodium hydroxide, and agar.
b) Organ culture: it is defined as the growth of the organ or the part of the organ but under in-vitro conditions.
c) Macropropagation: In this method, the repression of the apical meristem will stimulate the regeneration of the lateral meristem.
Hence, the correct answer is option C.

Note: The tissue culture is used to produce large quantities of a given plant. It is also used to accelerate the production of new varieties of a plant. It is widely used to eliminate the presence of any pest or virus from the plant of interest.