MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the chromosome mutation leads to Beta-thalassemia? |
| A. | 21 |
| B. | 10 |
| C. | 11 |
| D. | 13 |
| Answer» D. 13 | |
| 2. |
Which of the following statements is incorrect with respect to alpha-thalassemia? |
| A. | Involves the genes HBA1 and HBA2 |
| B. | Inherited in a Mendelian dominant fashion |
| C. | Connected to the deletion of the 16p chromosome |
| D. | Result in decreased -globin production |
| Answer» C. Connected to the deletion of the 16p chromosome | |
| 3. |
By which of the following defects, thalassemia is caused? |
| A. | Defects in RBCs |
| B. | Defects in WBCs |
| C. | Defects in platelets |
| D. | Defects in lymphocytes |
| Answer» B. Defects in WBCs | |
| 4. |
In which of the following places thalassemia is not common? |
| A. | Indian subcontinent |
| B. | South-east Africa |
| C. | Mediterranean |
| D. | North America |
| Answer» E. | |
| 5. |
Heterozygous individuals of sickle cell anaemia are severely affected by the disease. |
| A. | False |
| B. | True |
| Answer» B. True | |
| 6. |
How many genotypes of sickle cell anaemia are possible in a population? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» D. Four | |
| 7. |
What is the percentage of children being a carrier of haemophilia if their mother is a carrier and their father is a normal man? |
| A. | 25% |
| B. | 50% |
| C. | 75% |
| D. | 100% |
| Answer» B. 50% | |
| 8. |
What is the full form of AHG? |
| A. | Anti haemophilic globulin |
| B. | Anti haemoglobin |
| C. | Allergic haemoglobin |
| D. | Allergic haemophilic globulin |
| Answer» B. Anti haemoglobin | |
| 9. |
How can a female be haemophilic? |
| A. | Mother is haemophilic and father is normal |
| B. | Mother is a carrier and father is haemophilic |
| C. | Both mother and father are carriers |
| D. | Both mother and father are haemophilic |
| Answer» C. Both mother and father are carriers | |
| 10. |
Haemophilia is an autosomal recessive trait. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
What percentage of children are colour blind if their father is colour blind and the mother is a carrier for Colour blindness? |
| A. | 25% |
| B. | 50% |
| C. | 75% |
| D. | 100% |
| Answer» C. 75% | |
| 12. |
What will be the percentage of sons having a normal vision if the father has normal vision and their mother is colour blind? |
| A. | 0% |
| B. | 25% |
| C. | 50% |
| D. | 100% |
| Answer» B. 25% | |
| 13. |
Which of the following type of inheritance is shown by colour blindness? |
| A. | Chromosomal inheritance |
| B. | Criss-cross inheritance |
| C. | Zig-zag inheritance |
| D. | Up-down inheritance |
| Answer» C. Zig-zag inheritance | |
| 14. |
When can a female be colour blind? |
| A. | Father has normal vision and the mother is a carrier |
| B. | Father has normal vision and mother is colour blind |
| C. | Father is colour blind and the mother has a normal vision |
| D. | Father is colour blind and mother is a carrier |
| Answer» E. | |
| 15. |
People suffering from colour blindness fail to distinguish which of the two colours? |
| A. | Red and Green |
| B. | Blue and Green |
| C. | Red and Blue |
| D. | Red and Yellow |
| Answer» B. Blue and Green | |