MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Cytogenetics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The intersex is produced by ________________ |
| A. | Fusion of a male and female zygote |
| B. | Loss of X chromosome from some cells |
| C. | Loss of Y chromosomes from some cells |
| D. | Gain of X or Y chromosome due to non-disjunction |
| Answer» D. Gain of X or Y chromosome due to non-disjunction | |
| 2. |
A female with AA+ XXX can only result from female parental non-disjunction. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
A person with a genetic composition AA+XYY composition. The non-disjunction is in the __________ parent and in _____________ meiotic division. |
| A. | Male, 1st |
| B. | Male, 2nd |
| C. | Female, 1st |
| D. | Female, 2nd |
| Answer» C. Female, 1st | |
| 4. |
Klinefelter syndrome results due to ____________ |
| A. | Non-disjunction in the male gamete |
| B. | Non-disjunction in the female gamete |
| C. | Gradual loss of chromosome |
| D. | Non-disjunction in any of the gametes |
| Answer» E. | |
| 5. |
A_PERSON_WITH_A_GENETIC_COMPOSITION_AA+XYY_COMPOSITION._THE_NON-DISJUNCTION_IS_IN_THE____________PARENT_AND_IN_______________MEIOTIC_DIVISION.?$ |
| A. | Male, 1st |
| B. | Male, 2nd |
| C. | Female, 1st |
| D. | Female, 2nd |
| Answer» C. Female, 1st | |
| 6. |
The intersex is produced by ________________$ |
| A. | Fusion of a male and female zygote |
| B. | Loss of X chromosome from some cells |
| C. | Loss of Y chromosomes from some cells |
| D. | Gain of X or Y chromosome due to non-disjunction |
| Answer» D. Gain of X or Y chromosome due to non-disjunction | |
| 7. |
A female with AA+ XXX can only result from female parental non-disjunction.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Klinefelter syndrome results due to ___________? |
| A. | Non-disjunction in the male gamete |
| B. | Non-disjunction in the female gamete |
| C. | Gradual loss of chromosome |
| D. | Non-disjunction in any of the gametes |
| Answer» E. | |
| 9. |
Which of the following is wrong for sex chromosome? |
| A. | X chromosome is larger than Y |
| B. | Female human are homozygous |
| C. | Y chromosome carries TDF |
| D. | All genes present on Y chromosome are unique to it |
| Answer» E. | |
| 10. |
In an experiment, you add the short arm of Y chromosome to a cell line with composition AA+ XX. What will you see? |
| A. | The cell rejects the Y chromosome |
| B. | The cell develop female character |
| C. | The cell develop male character |
| D. | The cell develop neuter gender character |
| Answer» D. The cell develop neuter gender character | |
| 11. |
The gene for sex determination in mammals is _________ and it is located in ___________ |
| A. | MAT, Y |
| B. | SRY, Y |
| C. | MAT, X |
| D. | SRY, X |
| Answer» C. MAT, X | |
| 12. |
Human being with genetic combination AA+ XXX will be non-viable like Drosophila with the same combination. |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
In mammals which of the following will be a Turner? |
| A. | AA + XXY |
| B. | AA+ XYY |
| C. | AA + XO/ XY |
| D. | AA+ XO |
| Answer» E. | |
| 14. |
In Drosophila an organism with the genetic composition AA+XXY will be a normal female. What will be the case for mammal? |
| A. | Normal female |
| B. | Normal male |
| C. | Klinefelter |
| D. | Turner |
| Answer» D. Turner | |
| 15. |
Mammals have _______________ type of sex determination. |
| A. | XX/ XY |
| B. | XX/ XO |
| C. | ZZ/ ZY |
| D. | Genic |
| Answer» B. XX/ XO | |