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 can not be used as a fixative? |
| A. | formaldehyde |
| B. | acetic acid |
| C. | alcohol |
| D. | vitamin B₁₂ |
| Answer» E. | |
| 2. |
Which of the following is used for the preparation of a section specimen? |
| A. | phenol |
| B. | isoamyl alcohol |
| C. | fixative |
| D. | lubricative |
| Answer» D. lubricative | |
| 3. |
A fixative _______________ the macromolecular components of a cell. |
| A. | degrades |
| B. | immobilizes |
| C. | penetrates |
| D. | granulates |
| Answer» C. penetrates | |
| 4. |
The maximum possible numerical aperture of 1.5 is for a ______________ lens. |
| A. | oil immersion |
| B. | air interface |
| C. | water interface |
| D. | binocular |
| Answer» B. air interface | |
| 5. |
The numerical aperture is constant for each lens. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 6. |
The process of introducing DNA into cells is called ____________________ |
| A. | blotting |
| B. | conjugation |
| C. | transfection |
| D. | conduction |
| Answer» D. conduction | |
| 7. |
Isolation of an organelle in bulk quantity can be accomplished by _____________ |
| A. | spectroscopy |
| B. | spectrophotometry |
| C. | differential centrifugation |
| D. | mass spectroscopy |
| Answer» D. mass spectroscopy | |
| 8. |
The isotonic buffer solution prevents _________ |
| A. | change in pressure |
| B. | change in temperature |
| C. | change in pH |
| D. | membrane rupture |
| Answer» E. | |
| 9. |
Density gradient centrifugation is a type of isopycnic centrifugation. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 10. |
Which of the following can be used to study cellular activities? |
| A. | Diffraction |
| B. | Cell-free systems |
| C. | Autoradiography |
| D. | Liquid chromatography |
| Answer» C. Autoradiography | |
| 11. |
Purification of a protein can be measured as an increase in _____________ |
| A. | temperature |
| B. | pH value |
| C. | specific activity |
| D. | polarity |
| Answer» D. polarity | |
| 12. |
Which of the following magnification of the ocular will occupy maximum retinal surface? |
| A. | 1X |
| B. | 5X |
| C. | 20X |
| D. | 50X |
| Answer» E. | |
| 13. |
527 nanometers is the wavelength of ______________ light. |
| A. | red |
| B. | white |
| C. | green |
| D. | blue |
| Answer» D. blue | |
| 14. |
The resolution attained by a microscope is limited by _____________________ |
| A. | diffraction |
| B. | refraction |
| C. | reflection |
| D. | retraction |
| Answer» B. refraction | |
| 15. |
Which of the following component of the light microscope illuminates the specimen by gathering diffuse rays from the light microscope? |
| A. | light source |
| B. | eyepiece |
| C. | condenser lens |
| D. | screws |
| Answer» D. screws | |
| 16. |
Ocular lens forms a virtual image. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |