MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Cytogenetics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Extreme klinefelter is an example of _____________________ |
| A. | Monosomy |
| B. | Trisomy |
| C. | Disomy |
| D. | Tetrasomy |
| Answer» E. | |
| 2. |
Sexual mosaics lead to formation of _______________ |
| A. | Female from male egg |
| B. | Gynandromorph |
| C. | Klinefelter |
| D. | Trisomy |
| Answer» C. Klinefelter | |
| 3. |
Chromosome ____________ trisomy leads to Edward s syndrome. |
| A. | 12 |
| B. | 13 |
| C. | 18 |
| D. | 21 |
| Answer» D. 21 | |
| 4. |
At what maternal age the probability of having a child with Down s syndrome is increased drastically? |
| A. | 25 |
| B. | 30 |
| C. | 35 |
| D. | 45 |
| Answer» D. 45 | |
| 5. |
A non-disjunction in the 1st phase of meiosis will lead to ______________ |
| A. | Monosomy |
| B. | Nullysomy |
| C. | Disomy |
| D. | Trtrasomy |
| Answer» C. Disomy | |
| 6. |
The probability of aneuploidy in offspring increases with age as _________________ |
| A. | Chromosomes tend to lose information with age |
| B. | Pairings at dichtyotene stages are gradually lost |
| C. | Ability of fertilization with age is gradually lost |
| D. | Chromosomal aberration with age |
| Answer» C. Ability of fertilization with age is gradually lost | |
| 7. |
Patau syndrome is a result of which of the following? |
| A. | Non-disjunction of sex chromosome in female |
| B. | Non- disjunction of sex chromosome in male |
| C. | Non-disjunction of chromosome 21 |
| D. | Non-disjunction of chromosome 13 |
| Answer» E. | |
| 8. |
________________ aneuploidy is better tolerated. |
| A. | Nullisomic |
| B. | Autosomal |
| C. | Sex chromosomal |
| D. | Chromosome 13 |
| Answer» D. Chromosome 13 | |
| 9. |
Which of the following is an example of trisomy ________________ |
| A. | Endosperm |
| B. | Klinefelter |
| C. | Turner |
| D. | Xeroderma |
| Answer» C. Turner | |
| 10. |
Aneuploidy is usually deleterious as _________________ |
| A. | Chromosomal pairing is hampered |
| B. | Gene balance is disrupted |
| C. | Size of individual may vary |
| D. | Chromosomal disintegration is increased |
| Answer» C. Size of individual may vary | |
| 11. |
Turner s syndrome is a result of _________________ |
| A. | Nullisomy |
| B. | Monosomy |
| C. | Trisomy |
| D. | Polysomy |
| Answer» C. Trisomy | |
| 12. |
If an organism has 14 chromosomes, the number of chromosome generated by nullisomy will be_____________________ |
| A. | 15 |
| B. | 7 |
| C. | 13 |
| D. | 12 |
| Answer» E. | |
| 13. |
In aneuploidy the entire set of chromosome is not involved in duplication of deletion. |
| A. | True |
| B. | False |
| Answer» B. False | |