MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Cytogenetics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
POSITIVE_EFFECT_VARIEGATIONS_CAN_LEAD_TO___________?$ |
| A. | Translocation |
| B. | Over expression |
| C. | Under expression |
| D. | Suppression |
| Answer» E. | |
| 2. |
If_the_XIC_passes_to_chromosome_3_in_a_human_what_will_be_the_result?$ |
| A. | Chromosome 3 will have one more protein to express |
| B. | Human race will divide into two species |
| C. | Chromosome 3 will be inactivated |
| D. | There will be sticking of chromosome 3 with other chromosomes |
| Answer» D. There will be sticking of chromosome 3 with other chromosomes | |
| 3. |
Which of the following is a result of reciprocal translocation? |
| A. | Burkitt’s lymphpma |
| B. | Trychothiodystrophy |
| C. | Thalassemia |
| D. | Cockyne’s syndrome |
| Answer» B. Trychothiodystrophy | |
| 4. |
There are two chromosomes 1- A—B—C—D—E and 2- F—G—H— I, if A—B—C and F—G undergo reciprocal translocation what will not be true?$ |
| A. | New sequence at 1 will be C—D—E—F—G |
| B. | The 1 will then pair with both 1’ and 2’ |
| C. | Pairing will be between same gene loci only |
| D. | 2nd chromosome will become longer |
| Answer» B. The 1 will then pair with both 1‚Äö√Ñ√∂‚àö√ë‚àö¬• and 2‚Äö√Ñ√∂‚àö√ë‚àö¬• | |
| 5. |
Which of the segregation of translocated chromosome will result in non- lethal gamete? |
| A. | Homologous chromosomes moving to same pole |
| B. | Alternate segregation |
| C. | Adjacent with the homologous chromosomes moving to same pole |
| D. | Adjacent with homologous chromosomes moving to different pole |
| Answer» C. Adjacent with the homologous chromosomes moving to same pole | |
| 6. |
Which of the following could result in homologous chromosomes moving to the same pole after anaphase 1? |
| A. | Doubling |
| B. | Inversion |
| C. | Breaking |
| D. | Translocation |
| Answer» E. | |
| 7. |
If a part of the chromosome was transferred to a non-homologous chromosome say 1 to 1’. Then which of the following is not true?$ |
| A. | The pairing in meiosis will be affected |
| B. | The chromosome will be torn apart while segregation |
| C. | In most of the cases, the resultant gamete will be non-viable |
| D. | The pairing will be between 4 homologous chromosomes |
| Answer» C. In most of the cases, the resultant gamete will be non-viable | |
| 8. |
Translocation in plants was discovered by_____________ |
| A. | Stern |
| B. | Barbara McClintok |
| C. | Sutton and Boveri |
| D. | Morgan |
| Answer» C. Sutton and Boveri | |
| 9. |
In translocating gene fragment which part is responsible for translocation? |
| A. | The LTR |
| B. | The transcribed gene |
| C. | The non-coding part of gene |
| D. | The surrounding sequences |
| Answer» B. The transcribed gene | |
| 10. |
Which of the following is not a type of translocation? |
| A. | Simple |
| B. | Reciprocal |
| C. | Tandem |
| D. | Intercalary |
| Answer» D. Intercalary | |