MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Cell Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The likelihood of having a child with Down syndrome increases with _________________ |
| A. | age of father |
| B. | age of mother |
| C. | birth of siblings |
| D. | fertilization rate |
| Answer» C. birth of siblings | |
| 2. |
Klinefelter syndrome is associated with ________________ |
| A. | human males |
| B. | human females |
| C. | invertebrates |
| D. | protists |
| Answer» B. human females | |
| 3. |
The absence of second X chromosome in a female leads to _______________________ |
| A. | Down syndrome |
| B. | Turner syndrome |
| C. | Alzheimer’s disease |
| D. | Leukemia |
| Answer» C. Alzheimer’s disease | |
| 4. |
Presence of an extra copy of which chromosome leads to the Doen syndrome? |
| A. | chromosome 9 |
| B. | chromosome 11 |
| C. | chromosome 17 |
| D. | chromosome 21 |
| Answer» E. | |
| 5. |
__________ in males occurs with a much lower level of chromosomal abnormalities than in females. |
| A. | Meiosis |
| B. | Mitosis |
| C. | Translation |
| D. | Transcription |
| Answer» B. Mitosis | |
| 6. |
A fetus with which of the following abnormalities might not succumb soon after birth? |
| A. | monosomy |
| B. | trisomy 13 |
| C. | trisomy 18 |
| D. | trisomy 21 |
| Answer» E. | |
| 7. |
Aneuploidy is the condition associated with ______________ |
| A. | transcription inefficiency |
| B. | fragile chromosomes |
| C. | abnormal chromosome umber |
| D. | inability to perform meiosis |
| Answer» D. inability to perform meiosis | |
| 8. |
Chiasmata are ____ shaped structures. |
| A. | X |
| B. | U |
| C. | V |
| D. | Z |
| Answer» B. U | |
| 9. |
Leptotene and zygotene are the stages that occur during _____________ of meiosis. |
| A. | anaphase |
| B. | prophase II |
| C. | metaphase II |
| D. | telophase |
| Answer» C. metaphase II | |
| 10. |
The sporic or intermediate meiosis is unrelated to gamete formation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
Zygotic meiosis only occurs in _______________________ |
| A. | fungi |
| B. | monera |
| C. | vertebrates |
| D. | mammals |
| Answer» B. monera | |
| 12. |
Vertebrate eggs are typically fertilized before ___________________ is complete. |
| A. | mitosis |
| B. | meiosis |
| C. | translation |
| D. | transcription |
| Answer» C. translation | |
| 13. |
A highly specialized sperm cell is also called ________________ |
| A. | spermatozoon |
| B. | oocyte |
| C. | spermatocyte |
| D. | spermatid |
| Answer» B. oocyte | |
| 14. |
One round of meiotic division gives rise to _____ haploid cells. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 15. |
Meiosis ensures the production of a haploid phase. |
| A. | True |
| B. | False |
| Answer» B. False | |