MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your AIIMS UG knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A source of sound Sis moving with a velocity of 50 m/s towards a stationary observer. The observer measures the frequency of the source as 1000 Hz. What will be the apparent frequency of the source when it is moving away from the observer after crossing him? The velocity of the sound in the medium is 350 m/s. |
| A. | 750 Hz |
| B. | 857 Hz |
| C. | 1143 Hz |
| D. | 1333 Hz |
| Answer» B. 857 Hz | |
| 2. |
When a copper voltmeter is connected with a battery of emf 12 V. 2 g of copper is deposited in 30 mm. it the same voltmeter is connected across a 6 V battery then the mass of copper deposited in 45 mm would be |
| A. | 1g |
| B. | 1.5g |
| C. | 2g |
| D. | 2.5g |
| Answer» C. 2g | |
| 3. |
In a bacterium, the amount of adenine was found to be 18 per cent. Suggest the cytosine base composition from the following |
| A. | 64% |
| B. | 36% |
| C. | 32% |
| D. | 18% |
| Answer» D. 18% | |
| 4. |
The function of nitrogen fixation In Anabaena (cyanobacterium) is performed by |
| A. | thylakoid |
| B. | heterocyst |
| C. | phycocyanin |
| D. | phycoerythrin |
| Answer» C. phycocyanin | |
| 5. |
Centre of DNA Fingerprinting and Diagnostics (CDFD) is located at |
| A. | Delhi |
| B. | Chennai |
| C. | Kolkata |
| D. | Hyderabad |
| Answer» E. | |
| 6. |
Sinking of zooplankton during the day and rising to the surface at night is an example of |
| A. | circinal rhythm |
| B. | circadian rhythm |
| C. | tidal rhythm |
| D. | None of these |
| Answer» C. tidal rhythm | |
| 7. |
In the blood of an adult man the total content of hemoglobin is roughly |
| A. | several hundred grams |
| B. | tens of gram (10-100 g) |
| C. | several grams |
| D. | several hundred milligram |
| Answer» B. tens of gram (10-100 g) | |
| 8. |
Which one of the following is the best stage to observe the shape, size and number of chromosomes in a cell? |
| A. | Interphase |
| B. | Prophase |
| C. | Metaphase |
| D. | Telophase |
| Answer» D. Telophase | |
| 9. |
The main function of the white blood cell in the human intestine system is to |
| A. | combat and destroy antigenic particles |
| B. | produce antigens to combat antibodies |
| C. | carry oxygen around the body |
| D. | transport antigens to B memory cells in the lymph nodes |
| Answer» B. produce antigens to combat antibodies | |
| 10. |
The ratio of osmotic pressure exerted by 1 M sucrose and 1 M NaCl solution will be |
| A. | 1 |
| B. | 2 |
| C. | 0.1 |
| D. | 0.5 |
| Answer» E. | |
| 11. |
A fruit developed from a condensed inflorescence is |
| A. | simple fruit |
| B. | aggregate fruit |
| C. | composite fruit |
| D. | etaerio |
| Answer» D. etaerio | |
| 12. |
Appearance of dark-coloured pepper moths among the light-coloured ones as a result of increased industrial pollution is an example of |
| A. | disruptive selection |
| B. | stabilising selection |
| C. | directional selection |
| D. | None of the above |
| Answer» D. None of the above | |