MCQOPTIONS
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MCQOPTIONS
This section includes 21 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In one meiotic cell division, the cell divides |
| A. | Once |
| B. | Twice |
| C. | Thrice |
| D. | Four times |
| Answer» C. Thrice | |
| 2. |
Interphase of mitosis in man takes |
| A. | 12 hours |
| B. | 10 hours |
| C. | 3 hours |
| D. | 25 hours |
| Answer» E. | |
| 3. |
Which of the following is the shortest phase of the cell cycle |
| A. | S phase |
| B. | \[{{G}_{1}}\]phase |
| C. | \[{{G}_{2}}\]phase |
| D. | M phase |
| Answer» E. | |
| 4. |
Which stage connecting link between Meiosis I and Meiosis II [AFMC 2002] |
| A. | Interphase I |
| B. | Interphase II |
| C. | Interkinesis |
| D. | Anaphase I |
| Answer» D. Anaphase I | |
| 5. |
Mitotic index means |
| A. | Rate of mitotic division |
| B. | Ratio of mitotic and meiotic division |
| C. | Ratio of dividing and non-dividing cells |
| D. | None of the above |
| Answer» D. None of the above | |
| 6. |
The process by which the chromosomes are separated in the sex cells and their number reduced from the diploid to haploid condition is known as [DPMT 1991] |
| A. | Division |
| B. | Mitosis |
| C. | Conjugation |
| D. | Meiosis |
| Answer» E. | |
| 7. |
In mitosis nucleolus and nuclear membrane disappear at [AFMC 1996] |
| A. | Interphase |
| B. | Prophase |
| C. | Metaphate |
| D. | Telophase |
| Answer» C. Metaphate | |
| 8. |
Between mitosis a cell is called to be in the [AMU 1990] |
| A. | Resting stage |
| B. | Sleeping stage |
| C. | Active stage |
| D. | None of these |
| Answer» B. Sleeping stage | |
| 9. |
At\[{{G}_{1}}\]stage which phenomenon takes place [AFMC 1995] |
| A. | DNA synthesis |
| B. | RNA synthesis |
| C. | Reverse transcription |
| D. | All of the above |
| Answer» C. Reverse transcription | |
| 10. |
The number of chromosome groups at the equatorial plate in metaphase-I of meiosis in a plant with\[2n=50\]shall be[MP PMT 1995, 98] |
| A. | 50 |
| B. | 25 |
| C. | 30 |
| D. | 100 |
| Answer» C. 30 | |
| 11. |
In which type of cell division spindle formation does not occur |
| A. | Mitosis |
| B. | Meiosis |
| C. | Endomitosis |
| D. | None of the above |
| Answer» D. None of the above | |
| 12. |
The spindle fibre contracts in [KCET 1998] |
| A. | Metaphase I |
| B. | Anaphase II |
| C. | Prophase II |
| D. | Telophase II |
| Answer» C. Prophase II | |
| 13. |
Four daughter cells formed after meiosis are [MP PMT 2001] |
| A. | Genetically similar |
| B. | Genetically different |
| C. | Anucleate |
| D. | Multinucleate |
| Answer» C. Anucleate | |
| 14. |
At which phase of meiosis, the two cells, each with separated sister chromatids move towards opposite poles [Pb. PMT 2004] |
| A. | Metaphase I |
| B. | Metaphase II |
| C. | Anaphase I |
| D. | Anaphase II |
| Answer» E. | |
| 15. |
Exchange of chromosome segments between maternal and paternal chromatids during meiosis is called [DPMT 1990; CBSE PMT 2000] |
| A. | Linkage |
| B. | Dominance |
| C. | Crossing over |
| D. | DNA multiplication |
| Answer» D. DNA multiplication | |
| 16. |
Mitosis occurs in [RPMT 2002] |
| A. | Haploid individuals |
| B. | Diploid individuals |
| C. | Both (a) and (b) |
| D. | In bacteria only |
| Answer» D. In bacteria only | |
| 17. |
An acrocentric chromosome at metaphase will be |
| A. | Condensed and lie near the equator |
| B. | Irregularly shaped and lie at one of the poles |
| C. | Condensed and lie at poles |
| D. | Coiled and get attached to spindle fibre |
| Answer» B. Irregularly shaped and lie at one of the poles | |
| 18. |
Which of the following cell division is found in prokaryotic cells |
| A. | Mitosis |
| B. | Meiosis |
| C. | Amitosis |
| D. | All the above |
| Answer» D. All the above | |
| 19. |
During mitosis chromosomes go to their poles in a stage called [CPMT 1994; MP PMT 2001; DPMT 2003; BHU 2004] |
| A. | Prophase |
| B. | Metaphase |
| C. | Anaphase |
| D. | Telophase |
| Answer» D. Telophase | |
| 20. |
How many reduction divisions are necessary for the formation of 200 grains of wheat [MHCET 2002] |
| A. | 250 |
| B. | 150 |
| C. | 200 |
| D. | 360 |
| Answer» B. 150 | |
| 21. |
Which of the following structure will not be common to mitotic cell of a higher plant [CBSE PMT 1997] |
| A. | Cell plate |
| B. | Centromere |
| C. | Centriole |
| D. | Spindle fibre |
| Answer» D. Spindle fibre | |