MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Cytogenetics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In yeast a MAT a type yeast can mate with __________ |
| A. | MAT alpha |
| B. | MAT beta |
| C. | MAT a |
| D. | It can’t mate |
| Answer» B. MAT beta | |
| 2. |
In yeast the gene responsible for sex determination is ______________ |
| A. | SXL |
| B. | XCE |
| C. | MAT |
| D. | XIST |
| Answer» D. XIST | |
| 3. |
Which of the following is true for a genic mode of sex determination? |
| A. | It is seen in higher eukaryotes |
| B. | Gene locus determines gender |
| C. | XX will always give female in this case |
| D. | It makes use of parthenogenesis for producing male offspring |
| Answer» C. XX will always give female in this case | |
| 4. |
Parthenogenesis can also take place in human beings. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
In bees the males are produced by _________ |
| A. | Mitosis and then fertilization |
| B. | Meiosis and then fertilization |
| C. | Mitosis but no fertilization |
| D. | Meiosis but no fertilizaton |
| Answer» D. Meiosis but no fertilizaton | |
| 6. |
WHICH_OF_THE_FOLLOWING_IS_TRUE_FOR_A_GENIC_MODE_OF_SEX_DETERMINATION??$ |
| A. | It is seen in higher eukaryotes |
| B. | Gene locus determines gender |
| C. | XX will always give female in this case |
| D. | It makes use of parthenogenesis for producing male offspring |
| Answer» C. XX will always give female in this case | |
| 7. |
PARTHENOGENESIS_CAN_ALSO_TAKE_PLACE_IN_HUMAN_BEINGS.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
In yeast a MAT a type yeast can mate with __________$ |
| A. | MAT alpha |
| B. | MAT beta |
| C. | MAT a |
| D. | It can’t mate |
| Answer» B. MAT beta | |
| 9. |
In yeast the gene responsible for sex determination is ______________$ |
| A. | SXL |
| B. | XCE |
| C. | MAT |
| D. | XIST |
| Answer» D. XIST | |
| 10. |
In bees the males are produced by ________? |
| A. | Mitosis and then fertilization |
| B. | Meiosis and then fertilization |
| C. | Mitosis but no fertilization |
| D. | Meiosis but no fertilizaton |
| Answer» D. Meiosis but no fertilizaton | |
| 11. |
Genic system of sex determination is seen in _______________ |
| A. | Yeast |
| B. | Fishes |
| C. | Reptiles |
| D. | Mammals |
| Answer» B. Fishes | |
| 12. |
In ZZ/ZW system if there is a recessive Z allele carrying a distinct phenotype, it will have greater probability of expression in ____________ |
| A. | Male |
| B. | Female |
| C. | Recessive genes will not be expressed |
| D. | Both genders equally |
| Answer» C. Recessive genes will not be expressed | |
| 13. |
In ZZ/ZW system which of the following is true? |
| A. | All organisms have ZZ chromosome |
| B. | The chromosomes are shaped like Z |
| C. | Females have ZW constitution |
| D. | Male is heterozygous |
| Answer» D. Male is heterozygous | |
| 14. |
We will see ZZ/ZW system in chicken; state true or false. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 15. |
In XO system a male has a mother but not a _____________ |
| A. | Grand father |
| B. | Father |
| C. | Grand mother |
| D. | Sibling |
| Answer» C. Grand mother | |
| 16. |
In case of XO system if an organism has AA+XO it will be a _______ |
| A. | Male |
| B. | Neuter |
| C. | Female |
| D. | Bisexual |
| Answer» B. Neuter | |
| 17. |
The XO system of sex determination is found in ______________ |
| A. | Insects |
| B. | Birds |
| C. | Reptiles |
| D. | Mammals |
| Answer» B. Birds | |