MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 20 Mcqs, each offering curated multiple-choice questions to sharpen your Genetic Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Where do P elements integrate into the genome? |
| A. | At specifically defined sites |
| B. | Randomly |
| C. | Only at the ends of the genome |
| D. | Integration depends on reaction conditions |
| Answer» C. Only at the ends of the genome | |
| 2. |
The host should ____ P elements, these elements lead to _______ |
| A. | not have, instability |
| B. | have, stability |
| C. | not have, increase the time taken for integration |
| D. | have, reduces the time taken for integration |
| Answer» B. have, stability | |
| 3. |
Cis-acting sites should be present in the vector for ________ |
| A. | replication |
| B. | selecting recombinants by acting as a marker |
| C. | transposition |
| D. | providing high copy number |
| Answer» D. providing high copy number | |
| 4. |
Wild-type Drosophila flies are _____ to ethanol supplied in food. |
| A. | resistant |
| B. | non-resistant |
| C. | resistant at low concentration and non-resistant at higher concentration |
| D. | resistant at higher concentrations and non-resistant at lower concentration |
| Answer» B. non-resistant | |
| 5. |
Wild type flies have crimson red eyes whereas rosy mutant have brick-red eyes. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
rosy gene is used as a selectable marker for transformation in Drosophila, it produces an enzyme required for the synthesis of ____________ |
| A. | wing pigment |
| B. | eye pigment |
| C. | both eye and wing pigment |
| D. | thorax pigment |
| Answer» C. both eye and wing pigment | |
| 7. |
______ integration systems are used for the transfer of DNA in Drosophila and it is composed of ______ |
| A. | Artificial, P elements |
| B. | Artificial, S elements |
| C. | Natural, P elements |
| D. | Natural, S elements |
| Answer» D. Natural, S elements | |
| 8. |
In Drosophila, only nuclei cells give rise to germline cells. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
CIS-ACTING_SITES_SHOULD_BE_PRESENT_IN_THE_VECTOR_FOR_________?$ |
| A. | replication |
| B. | selecting recombinants by acting as a marker |
| C. | transposition |
| D. | providing high copy number |
| Answer» D. providing high copy number | |
| 10. |
Where do P elements integrate in the genome?$ |
| A. | At specifically defined sites |
| B. | Randomly |
| C. | Only at the ends of the genome |
| D. | Integration depends on reaction conditions |
| Answer» C. Only at the ends of the genome | |
| 11. |
The host should ____ P elements, these elements lead to _______$ |
| A. | not have, instability |
| B. | have, stability |
| C. | not have, increase the time taken for integration |
| D. | have, reduces the time taken for integration |
| Answer» B. have, stability | |
| 12. |
Transient gene silencing can be carried out by microinjecting ______ |
| A. | single stranded RNA |
| B. | double stranded DNA |
| C. | double stranded RNA |
| D. | either double stranded DNA or RNA |
| Answer» D. either double stranded DNA or RNA | |
| 13. |
Wild-type Drosophila flies are _____ to ethanol supplied in food? |
| A. | resistant |
| B. | non-resistant |
| C. | resistant at low concentration and non-resistant at higher concentration |
| D. | resistant at higher concentrations and non-resistant at lower concentration |
| Answer» B. non-resistant | |
| 14. |
Wild type flies have crimson red eyes whereas rosy mutant have brick-red eyes. Is the given statement true or false? |
| A. | True |
| B. | False |
| Answer» C. | |
| 15. |
rosy gene is used a selectable marker for transformation in Drosophila, it produces an enzyme required for the synthesis of: |
| A. | wing pigment |
| B. | eye pigment |
| C. | both eye and wing pigment |
| D. | thorax pigment |
| Answer» C. both eye and wing pigment | |
| 16. |
Only the _____ part of Drosophila is transgenic and the rest is not. This is known as ______ |
| A. | germline cell, mosaic |
| B. | nurse cells, mosaic |
| C. | germline cells, hybrid |
| D. | nurse cells, hybrid |
| Answer» B. nurse cells, mosaic | |
| 17. |
______ integration systems are used for transfer of DNA in Drosophila and it is composed of ______ |
| A. | Artificial, P elements |
| B. | Artificial, S elements |
| C. | Natural, P elements |
| D. | Natural, S elements |
| Answer» D. Natural, S elements | |
| 18. |
In Drosophila, only nuclei cells give rise to germline cells. Is the given statement true or false? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 19. |
Syncytium is a layer of ______ that have not been separated into individual cells. |
| A. | nuclei |
| B. | mitochondria |
| C. | cytoplasm |
| D. | nuclei and cytoplasm |
| Answer» B. mitochondria | |
| 20. |
Transgenic Drosophila can be created by microinjection of DNA into the embryos. These embryos are at which stage of development? |
| A. | One-cell stage |
| B. | Pre-blastoderm stage |
| C. | Blastoderm |
| D. | Morula |
| Answer» C. Blastoderm | |