Question

What does Cry-toxin do?

• A. Swelling of cells
• B. Binding of epithelium of midgut
• C. Lysis of intestinal cells
• D. More than one of these

Hint:

Cry-toxin is a potent biopesticide that targets insect digestive systems, leading to cell lysis and death.

Answer 1

The Correct Option is D

Step 1: Understand Cry-toxin.
Cry-toxin is a protein toxin produced by the bacterium Bacillus thuringiensis. It is used in pest control, especially in crops. The toxin can cause multiple effects on the target organism.
Step 2: Review the options.
- Cry-toxin can cause swelling of cells, binding to the epithelium of the midgut, and also the lysis (destruction) of intestinal cells. Hence, more than one of these options is correct. - Options (A), (B), and (C) describe the effects of Cry-toxin, which all lead to the disruption of the digestive system in insects.
Step 3: Conclude.
Since Cry-toxin can cause all of the listed effects, option (D) is the correct answer.
Final Answer: \[ \boxed{\text{More than one of these}} \]