MCQOPTIONS
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MCQOPTIONS
This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What kind of sex-determination system is present in honey bees? |
| A. | Haplodiploid |
| B. | Haploid |
| C. | Diploid |
| D. | XY type |
| Answer» B. Haploid | |
| 2. |
In which of the following organisms, male has half the number of chromosomes than female? |
| A. | Moths |
| B. | Grasshoppers |
| C. | Honey bees |
| D. | Butterflies |
| Answer» D. Butterflies | |
| 3. |
Which of the following organisms does not show female heterogametic conditions? |
| A. | Butterflies |
| B. | Grasshopper |
| C. | Moth |
| D. | Birds |
| Answer» C. Moth | |
| 4. |
The given figures show which of the following species of organisms? |
| A. | Grasshopper |
| B. | Butterfly |
| C. | Moth |
| D. | Drosophila |
| Answer» E. | |
| 5. |
What is the full form of TDF? |
| A. | Testis determining factor |
| B. | Testes development factor |
| C. | Thyroxine determining factor |
| D. | Thyroid developing factor |
| Answer» B. Testes development factor | |
| 6. |
What is the probability of having a girl child in sixth pregnancy if the first five progenies are boys? |
| A. | 25% |
| B. | 50% |
| C. | 65% |
| D. | 10% |
| Answer» C. 65% | |
| 7. |
Y chromosome is always larger than the X-chromosome. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Which of the following does not show XY type of male heterogametic condition? |
| A. | Drosophila |
| B. | Human beings |
| C. | Elephants |
| D. | Grasshoppers |
| Answer» E. | |
| 9. |
In which of the following animals, there is a difference between the male and female numbers of chromosomes? |
| A. | Humans |
| B. | Drosophila |
| C. | Grasshopper |
| D. | Pigeon |
| Answer» D. Pigeon | |
| 10. |
Which of the following determines the sex of the offspring in male heterogametic conditions? |
| A. | Egg |
| B. | Sperm |
| C. | Both egg and sperm |
| D. | It cannot be determined |
| Answer» C. Both egg and sperm | |
| 11. |
In which of the following organisms, the male heterogametic condition is not observed? |
| A. | Grasshoppers |
| B. | Humans |
| C. | Drosophila |
| D. | Birds |
| Answer» E. | |
| 12. |
Which of the following scientists discovered the Y-chromosome. |
| A. | Stevens |
| B. | Ernst Haeckel |
| C. | Francis Crick |
| D. | Wilson |
| Answer» B. Ernst Haeckel | |
| 13. |
Henking gave the term X chromosome. |
| A. | False |
| B. | True |
| Answer» B. True | |
| 14. |
The chromosomal basis of sex determination was discovered by which of the following scientists? |
| A. | Stevens |
| B. | Grey |
| C. | Henking |
| D. | Wilson |
| Answer» D. Wilson | |
| 15. |
How is the sex of grasshopper determined? |
| A. | Temperature |
| B. | Pressure |
| C. | Humidity |
| D. | Genetically |
| Answer» E. | |
| 16. |
Which of the following animals rely on environmental factors for sex determination? |
| A. | Turtles |
| B. | Humans |
| C. | Grasshopper |
| D. | Firefly |
| Answer» B. Humans | |