Answer: Induce polyploidy by inhibiting spindle formation.
- A Induce broad-spectrum disease resistance in treated seedlings
- B Cause random point mutations throughout the plant genome
- C Prevent pollen grains from germinating on the stigma surface
- D Induce polyploidy by inhibiting spindle formation
Correct answer: D. Induce polyploidy by inhibiting spindle formation
Explanation: Colchicine inhibits spindle fiber formation during cell division, preventing chromosome separation and resulting in polyploid cells with doubled chromosome numbers.
Different fish species occupy different feeding depths in the same pond without competing for food: Catla feeds near the surface, Rohu in the middle zone, and Mrigal or common carp at the bottom - letting a single pond support far more total fish than one species alone.
Concept context
Learn about animal husbandry, plant breeding, tissue culture, biofortification, and single cell protein.
Read the full Strategies for Enhancement in Food Production notes →