MCQOPTIONS
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| 1. |
In Drosophila XXY represents a female but in human it is an abnormal male. It shows that: |
| A. | Y-chromosome is essential for male sex in human. |
| B. | Y-chromosome is essential for female sex determination in Drosophila. |
| C. | Y-chromosome is not essential for male sex determination in human. |
| D. | All of the above |
| Answer» B. Y-chromosome is essential for female sex determination in Drosophila. | |