Question

Which statement is WRONG?

• A. Restriction enzymes cut DNA at specific sites
• B. DNA ligase joins DNA fragments
• C. Bt toxin gene is used for insect resistance
• D. Bioreactors are used only for plant tissue culture

Answer 1

Answer:

D. Bioreactors are used only for plant tissue culture

• Bioreactors are not limited to plant tissue culture. They are large-scale vessels (often 100–1000 liters) used for the mass production of various biological products, including: Pharmaceuticals: Production of insulin, vaccines, and recombinant proteins. Microbial Cultures: Growing bacteria or fungi to extract enzymes (like proteases) or organic acids. Animal Cell Culture: Used in the development of monoclonal antibodies. Waste Treatment: Large-scale aerobic and anaerobic digestion.