MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Biology Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Toxic content of B. thuringiensis is _______ in nature. |
| A. | protein |
| B. | steroid |
| C. | amino acid |
| D. | alkaloid |
| Answer» B. steroid | |
| 2. |
A gall producing gene in Agrobacterium tumefaciens is _______ |
| A. | cry gene |
| B. | nif gene |
| C. | T DNA |
| D. | beta gene |
| Answer» D. beta gene | |
| 3. |
The Bt toxin does not kill the Bacillus because the Bt toxin protein exist as inactive ________ |
| A. | lipid |
| B. | protoxins |
| C. | protein |
| D. | carbohydrate |
| Answer» C. protein | |
| 4. |
The protein crystals of B. thuringiensis contain toxic _______ protein. |
| A. | bactericidal |
| B. | fungicidal |
| C. | insecticidal |
| D. | antibiotic |
| Answer» D. antibiotic | |
| 5. |
Some strains of Bacillus thuringiensis can kill certain insects such as _______ |
| A. | lepidopterans |
| B. | scorpion |
| C. | fruit fly |
| D. | dragonfly |
| Answer» B. scorpion | |