Answer: The meristem, because it is usually free of virus.
- A The root tip, because it lacks chloroplasts
- B The mature leaf, because it has most cells
- C The meristem, because it is usually free of virus
- D The flower, because it makes gametes
Correct answer: C. The meristem, because it is usually free of virus
Explanation: Even in a diseased plant the apical and axillary meristems are generally free of virus, so culturing the meristem yields virus-free plants.
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 →