MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following selection step does not occur in lac selection system? |
| A. | Ampicillin resistance |
| B. | X-gal plating |
| C. | Agar plating |
| D. | Replica plating |
| Answer» E. | |
| 2. |
What is isopropylthiogalactoside? |
| A. | Plasmid of pUC series |
| B. | E.coli strain |
| C. | Antibiotic |
| D. | Inducer |
| Answer» E. | |
| 3. |
lacZ gene present in a Puc series plasmid codes for which of the enzyme? |
| A. | Beta-galactosidase |
| B. | Lactase |
| C. | Amylase |
| D. | Nuclease |
| Answer» B. Lactase | |