Question
How does the Refugia Technique prevent the development
of resistance in bollworms against Bt cotton?Solution
Explanation: The Refugia Technique prevents resistance development by allowing mating between susceptible insects from non-Bt crops and resistant insects from Bt cotton. In the next generation (F1), the progeny obtained is susceptible to Bt, as the recessive gene doesn't express itself in F1 generations.
13, 14, 18, 27, 43, ?
642 202 541 312 523 ?
...6 10 ? 210 1672 16710
...3 5 7 25 85 481
...19   20   42   129   ?    2605  . Â
2 3 3 ? 49 254
...147      138       120      93      ?      12
...The question below is based on the given series I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the questions...
31   48    67    90   ?      150
14 8 6 4 7 8.5
...
