MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Cytogenetics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is the correct pathway for developing female characters? |
| A. | Sxl- SR- Tra- Dsx- Male gene repression |
| B. | Sxl- Tra- SR- Dsx- Male gene repression |
| C. | Sxl- Tra- Dsx- SR- Male gene repression |
| D. | Sxl- SR- Dsx- Tra- Male gene repression |
| Answer» C. Sxl- Tra- Dsx- SR- Male gene repression | |
| 2. |
The composition AA: XXX will give a viable female in Drosophila. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Genetic combination of AA : XYY in drosophila gives a _________ |
| A. | Female |
| B. | Non-viable female |
| C. | Male |
| D. | Non-viable male |
| Answer» D. Non-viable male | |
| 4. |
THE_COMPOSITION_AA:_XXX_WILL_GIVE_A_VIABLE_FEMALE_IN_DROSOPHILA.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Which of the following is the correct pathway for developing female characters?$ |
| A. | Sxl- SR- Tra- Dsx- Male gene repression |
| B. | Sxl- Tra- SR- Dsx- Male gene repression |
| C. | Sxl- Tra- Dsx- SR- Male gene repression |
| D. | Sxl- SR- Dsx- Tra- Male gene repression |
| Answer» C. Sxl- Tra- Dsx- SR- Male gene repression | |
| 6. |
Genetic combination of AA : XYY in drosophila gives a ________? |
| A. | Female |
| B. | Non-viable female |
| C. | Male |
| D. | Non-viable male |
| Answer» D. Non-viable male | |
| 7. |
Which of the following will give a normal female Drosophila? |
| A. | AAA + XX |
| B. | AA + XXY |
| C. | AA + XY |
| D. | AA + XXX |
| Answer» C. AA + XY | |
| 8. |
Which of the following is a default pathway in Drosophila? |
| A. | Development of male characters |
| B. | Repression of male characters |
| C. | Development of female characters |
| D. | All pathways are induced |
| Answer» B. Repression of male characters | |
| 9. |
Sxl directly affects _____________ |
| A. | SR |
| B. | Dsx |
| C. | Tra |
| D. | Xce |
| Answer» D. Xce | |
| 10. |
The Sxl gene is turned ____________ by a ratio of _____________for X:A. |
| A. | OFF, 1 |
| B. | OFF, 0.5 |
| C. | ON, 0.5 |
| D. | ON, 0.75 |
| Answer» C. ON, 0.5 | |
| 11. |
Which of these genes is responsible for the development of sex of Drosophila? |
| A. | Xce |
| B. | Xist |
| C. | XIC |
| D. | Sxl |
| Answer» E. | |
| 12. |
Which of the following is true for Drosophila sex determination? |
| A. | Males are produced by presence of Y chromosome |
| B. | Females are produced by presence of Y chromosome |
| C. | Two X chromosome will always produce a female |
| D. | Two Y chromosome will always produce a male |
| Answer» D. Two Y chromosome will always produce a male | |
| 13. |
As Human and Drosophila both follow XY system of sex determination, a male in human is always a male in drosophila and same is for female. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
Drosophila follows which of these modes of sex determination? |
| A. | XX /XY |
| B. | XX/ XO |
| C. | ZZ/ ZW |
| D. | MM/NN |
| Answer» B. XX/ XO | |