Question

Ramet is
A. Clone
B. Individual of clone
C. Cell aggregate
D. Callus

Answer 1

Ramet is a term associated with plant clones. Plant clones are genetically similar organisms that arise from a single ancestor, asexually.

Complete answer:
Option A: The clones are the offsprings developed from a single cell of the parent body and are genetically identical to the parent. In plants, the clones are the genetically identical copies of a parent plant that are formed vegetatively. These will grow and give rise to mature plants with exactly the same characteristics as the parent plant. Therefore, this is the incorrect option.

Option B: The clones of a single parent plant form a population known as a clonal colony. A single member or individual of the clonal colony is referred to as ramet. Therefore this is the correct answer.
In fungi, the individual arising like this are called fruiting bodies. The ramets of the same population will be genetically identical.

Option C: Cell aggregation is a type of cell organization in which a group of cells that are loosely bounded with each other form a cluster. They are not bound strong enough to form tissue. Therefore, this is the incorrect option.

Option D: Callus is an unorganized growth or proliferation of plant parenchyma cells. In natural conditions, they are responsible for covering wounds on plants. In tissue culture, the growth of the callus is induced from somatic cells using plant growth hormones. Therefore, this is the incorrect option.

Hence, the correct answer is option (B)

Note: The plants which are having rhizome or underground stolon will produce clones. They are spread underground and at nodes, new plants will form. Each of these new plants is ramets.