NEET BIOLOGY

Detailed explanation-1: -Option B: Offset are the specific parts of the plant that are involved in vegetative reproduction of water hyacinth.-Offset is a runner that usually originates from the leaf axis of the weed and it runs in a horizontal direction. These offsets have a rosette of leaves below and adventitious roots below them.

Detailed explanation-2: -Water hyacinth is an invasive weed often called terror of Bengal and it reproduces by offset. An offset is a small, virtually complete daughter plant that has been naturally and asexually produced on the mother plant. They are clones, meaning that they are genetically identical to the mother plant.

Detailed explanation-3: -Water hyacinth: The offsets are the vegetative propagule of water hyacinth. They form crowns at their tips and when the stem of the plant breaks, the crowns fall on the ground and get converted into independent plants.

Detailed explanation-4: –Offsets in Pistia also helps in vegetative propagation of the organism.-Vegetative propagation is the process of regeneration of new plants from vegetative parts of the parent plant.-In Pistia the stem forms offsets that grow parallel to the water surface, forming roots and leaf system at intervals.

Detailed explanation-5: -Tulips and lilies are examples of plants that display offset characteristics by forming cormlets around the original mother corm. It is a means of plant propagation.