MCQOPTIONS
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MCQOPTIONS
This section includes 14 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. |
Alu sequences are ________________ |
| A. | dna transposons |
| B. | retrotransposons |
| C. | viral elements |
| D. | pseudogenes |
| Answer» C. viral elements | |
| 2. |
DNA transposons found in the human genome are capable of movement. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Which of the following type of repeating sequence arise due to transposition of elements? |
| A. | moderately repeating sequences |
| B. | microsatellite DNA |
| C. | minisatellite DNA |
| D. | satellite DNA |
| Answer» B. microsatellite DNA | |
| 4. |
In human cell nucleus, at least _____ percent of DNA has been derived from transposable elements. |
| A. | 10 |
| B. | 25 |
| C. | 30 |
| D. | 45 |
| Answer» E. | |
| 5. |
Transposase is a __________ enzyme. |
| A. | digestive |
| B. | mutant |
| C. | bacterial |
| D. | lysosomal |
| Answer» D. lysosomal | |
| 6. |
Who was the first person to suggest that genes were capable of moving around the genome? |
| A. | James Watson |
| B. | Barbara McClintock |
| C. | Louis Pasteur |
| D. | Gregor Mendel |
| Answer» C. Louis Pasteur | |
| 7. |
Pseudogenes are _______________ |
| A. | non-functional |
| B. | non-existent |
| C. | existent in plants only |
| D. | cannot be sequenced |
| Answer» B. non-existent | |
| 8. |
The globin gene is constructed from _____ exons and _______ introns. |
| A. | 3, 2 |
| B. | 2, 3 |
| C. | 2, 2 |
| D. | 3, 3 |
| Answer» B. 2, 3 | |
| 9. |
Which of the following is an intervening, non-coding sequences? |
| A. | intron |
| B. | exon |
| C. | axon |
| D. | axiom |
| Answer» B. exon | |
| 10. |
Unequal crossing over takes place due to _______________ of chromosomes. |
| A. | denaturation |
| B. | misalignment |
| C. | aggregation |
| D. | condensation |
| Answer» C. aggregation | |
| 11. |
Gene duplication occurs by unequal crossing over. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
Amphioxus is a _____________________ |
| A. | cell organelle |
| B. | marine animal |
| C. | marine plant |
| D. | reptile |
| Answer» C. marine plant | |
| 13. |
Which hypothesis was proposed by Susuma Ohno in 1971? |
| A. | 2R hypothesis |
| B. | 2T hypothesis |
| C. | 2S hypothesis |
| D. | 2P hypothesis |
| Answer» B. 2T hypothesis | |
| 14. |
Whole genome duplication is termed as __________________ |
| A. | aneuploidy |
| B. | polyploidization |
| C. | polyploidy |
| D. | polymorphism |
| Answer» C. polyploidy | |