Question

Carrot is micropropagated through:
A. Embryo
B. Embryoids
C. Shoot culture
D. Callus

Answer 1

Hint:
Micropropagation is a process of producing multiple progenies artificially through the process of tissue culture. For this to happen, only stem cells can be grown in a culture medium. Some parts can be grown through vegetative propagation too.

Complete answer:
In embryo culture, the embryo is cut into very fine pieces. It is kept in a culture medium and then transferred to soil to provide optimum conditions for the growing plant.
Embroids are pluripotent stem cells that are grown in a culture medium for the differentiation and growth of plants. Both methods stated above are found to be difficult to be able to cultivate carrots.
Shoot culture is a technique for the proliferation of the desired shoot part from a part of the shoot, also called explant. It helps in the multiplication of axillary branches. The shoot contents formed on these can serve as explants for more propagation. This method, however, is not suitable for the cultivation of carrots as it multiplies only the shoot contents while the carrot is a root.
Callus culture refers to the use of undifferentiated cells of plants that are grown in culture media. For its growth, it must be provided a media rich in auxin and moderate cytokinin concentrations. Carrots are excised into fine slices and kept in culture media for a while. The somatic embryo developed from this is transferred to another culture media. Then, it is transferred to the soil.
Thus, the correct answer is: Callus

Option ‘D’ is correct

Note:
Micropropagation is done to derive multiple copies of those desired quality plants. A plant with all desired characteristics is selected; very minute pieces are taken from it to be later used in cell culture, thus the name micropropagation.