MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Biochemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following statements is true about two-dimensional electrophoresis? |
| A. | Separates proteins of identical molecular weight, same pI but different charge |
| B. | Separates proteins of different molecular weight and different pI |
| C. | Separates proteins of identical molecular weight that differ in pI |
| D. | Isoelectric focusing is also termed as two-dimensional electrophoresis |
| Answer» D. Isoelectric focusing is also termed as two-dimensional electrophoresis | |
| 2. |
Which of the following statements is true about affinity chromatography? |
| A. | During the separation of a mixture of proteins, the protein which does not bind to ligand is eluted first |
| B. | During the separation of a mixture of proteins, the protein which does not bind to ligand is eluted last |
| C. | During the separation of a mixture of proteins, the protein which binds to ligand is eluted first |
| D. | Unwanted proteins are eluted by ligand solution |
| Answer» B. During the separation of a mixture of proteins, the protein which does not bind to ligand is eluted last | |
| 3. |
The pattern on paper in chromatography is called __________ |
| A. | Chroming |
| B. | Chroma |
| C. | Chromatograph |
| D. | Chromatogram |
| Answer» E. | |
| 4. |
Mobile phase can be ___________ |
| A. | Only solid |
| B. | Only gas |
| C. | Solid or liquid |
| D. | Liquid or gas |
| Answer» E. | |
| 5. |
The salt which produces salting out effect during extraction of proteins is? |
| A. | NH<sub>4</sub> SO<sub>4</sub> |
| B. | (NH<sub>4</sub>)<sub>2</sub> SO<sub>4</sub> |
| C. | (NH<sub>4</sub>)<sub>3</sub> SO<sub>4</sub> |
| D. | NaCl |
| Answer» C. (NH<sub>4</sub>)<sub>3</sub> SO<sub>4</sub> | |