Question

Cry-genes have been introduced in:

Options

• cotton and corn

• rice

• potato and soyabean

• all of the above

Answer 1

all of the above

Explanation:

Cotton, tomato, com, rice, soyabean, and other crop plants have had their Cry genes encoding the protein (Bt protein) extracted and inserted into them.

The following cry genes encode proteins that inhibit the pest that is used against them:

1. Cotton bollworms are controlled by cry I Ac and cry II Ab.
2. Corn borer controls cry I Ab.
3. The Colorado potato beetle is controlled by cry III Ab.
4. Corn rootworm is controlled by cry III Bb.