Question

What are bt crops and its advantage and disadvantage?

Answer 1

Explanation:

BT crops are gentically modified crops

1. These crops have bacillus thuringiensis in them
2. This bacteria protect plants from being eaten by bollworms
3. As the acid it produces killes the bollworm

eg. BT cotron, BT brinjal

Answer 2

cotton has some disadvantages: High cost of Bt cotton seeds as compared to non Bt cotton seeds. Effectiveness up to 120 days, after that the toxin producing efficiency of the Bt gene drastically reduces. Ineffective against sucking pests like jassids, aphids, whitefly etc.