Question

The rootlets are repeatedly swollen thus giving a beaded appearance in?
A. Dahlia
B. Momordica
C. Curcuma
D. Ipecac

Answer 1

The type of root system exhibited by that one is a type of adventitious root system. It belongs to the family cucurbitaceae and the order cucurbitales. Pearl or moniliform roots are adventitious roots that swell at regular intervals like pearls on a necklace.

Complete answer:
For example, Basella rubra, Momordica and some herbs. Many host genes induced during nodule organogenesis and symbiotic status of various legumes have been identified and characterized. These genes code for nodule-specific proteins (nodulins) that perform various functions in the development and metabolism of root nodules.

Additional Information:
The roots are the part of the plant that mainly serves as a support and plant anchoring.
Roots of carrots and radishes are modified to perform a special function in order to store food. Food stored in the roots is used in unfavorable conditions.
Roots, like Rhizophora, are modified for gas exchange. They have tiny pores that help exchange gases.
Roots on stilts provide mechanical support for the plant, egg sugar cane.
Climbing roots provide aerial support for the plant, for example vanilla.
Tied roots provide mechanical support for plants, egg orchids.
Sucking from the roots helps remove nutrition from other parts of the plant, such as the dodder.
Floating roots help aquatic plants to store air, for example the water lily.
The assimilating roots carry out photosynthesis, for example, trapp.
So, the correct answer is ‘Momordica’.

Note: The symbiotic root nodule, an organ formed in legumes, is the product of successful interactions between the host plant and soil bacteria, Rhizobium spp. An important role is placed by the plant hormone in the genesis of this root organ. The hormonal balance appears to be modulated by signals produced by bacteria.