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. |
Which of the following is an incorrect statement with respect to organelle inheritance? |
| A. | Iojap inheritance in maize |
| B. | Inheritance of poky |
| C. | Plastid inheritance in Mirabilis jalapa |
| D. | Coiling of shells |
| Answer» E. | |
| 2. |
What is the inheritance of characters by plasmagenes known as? |
| A. | Extrafield inheritance |
| B. | Maternal inheritance |
| C. | Extrachromosomal inheritance |
| D. | Maternal inheritance |
| Answer» D. Maternal inheritance | |
| 3. |
Which of the following is the representation of a dominant trait? |
| A. | Widow’s peak |
| B. | Tongue non-roller’s |
| C. | Fused ear lobes |
| D. | Tay-Sachs disease |
| Answer» B. Tongue non-roller’s | |
| 4. |
Which of the following is a representation of a recessive trait? |
| A. | Achondroplasia |
| B. | Blue eyes |
| C. | Huntington disease |
| D. | Brown eyes |
| Answer» C. Huntington disease | |
| 5. |
Which of the following is not the character of the person suffering from Turner’s syndrome? |
| A. | Short stature |
| B. | Poor breast development |
| C. | Well developed ovaries |
| D. | No menstruation |
| Answer» D. No menstruation | |
| 6. |
Which of the following is not the character of a person suffering from Klinefelter’s syndrome? |
| A. | Short stature |
| B. | Breast development |
| C. | Small testes |
| D. | Female type pubic hair pattern |
| Answer» B. Breast development | |
| 7. |
There are no loops on the finger-tips of the people suffering from Down’s syndrome. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Which of the following is incorrect with respect to Klinefelter’s syndrome? |
| A. | The fusion of an abnormal egg with normal sperm |
| B. | The fusion of a normal egg with an abnormal sperm |
| C. | The fusion of a normal egg with a normal sperm |
| D. | An additional copy of X-chromosome |
| Answer» D. An additional copy of X-chromosome | |
| 9. |
What is the genotype of the person suffering from Klinefelter’s syndrome? |
| A. | 44+ XXX |
| B. | 42+ XXX |
| C. | 44+ XXY |
| D. | 42+ XXY |
| Answer» D. 42+ XXY | |
| 10. |
Which of the following is not a feature of the tongue of the person suffering from Down’s syndrome? |
| A. | Furrowed tongue |
| B. | Big tongue |
| C. | Wrinkled tongue |
| D. | Straight tongue |
| Answer» E. | |
| 11. |
Which of the following is the characteristic feature of Down’s syndrome? |
| A. | Congenital heart disease |
| B. | Short stature |
| C. | Broad palm with palm crease |
| D. | Underdeveloped gonads |
| Answer» D. Underdeveloped gonads | |
| 12. |
Only mental development is retarded in the case of Down’s syndrome. |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
Which of the following is not a characteristic feature of Down’s syndrome? |
| A. | Very tall |
| B. | Small round head |
| C. | Furrowed tongue |
| D. | Partially open mouth |
| Answer» B. Small round head | |
| 14. |
In which year, Down’s syndrome was described? |
| A. | 1866 |
| B. | 1986 |
| C. | 1898 |
| D. | 1968 |
| Answer» B. 1986 | |
| 15. |
On which of the following chromosomal disorders are based on? |
| A. | Mutant allele and their defective products |
| B. | Imbalance in chromosome number and chromosome arrangement |
| C. | Mutant allele and chromosome arrangement |
| D. | Mutant allele and imbalance in chromosome number |
| Answer» C. Mutant allele and chromosome arrangement | |
| 16. |
Which of the following is the carrier of genetic information? |
| A. | Proteins |
| B. | Amino acids |
| C. | Carbohydrates |
| D. | DNA |
| Answer» E. | |