Question

Some of the characteristics of Bt cotton are

• A. Long fibre and resistance to aphids
• B. Medium - yield long and resistance to beetle pests
• C. High yield and production of toxic protein crystals which kill dipteran pests
• D. High yield and resistance to bollworms

Answer 1

The correct option is D High yield and resistance to bollworms

Bt cotton is an insect-resistant transgenic crop designed to combat the cotton bollworm. Bt cotton was created by genetically altering the cotton genome to express a microbial protein from the bacterium Bacillus thuringiensis. The transgene inserted into the plant's genome produces toxin crystals that the plant would not normally produce which, when ingested by a certain population of organisms, dissolves the gut lining, leading to the organism's death. Cotton bollworm is a lepidopteran pest.

So, the correct option is 'high yield and resistance to bollworms.'