- 1(current)
Q. No.Half of the mice (all males) have yellow body colour while the females are wild type(gray) in a cross between true-breeding wild type male flies and true-breeding female flies with yellow body colour. This, most likely, is due to the fact that:
| 1. | Some of your females had already mated with yellow males before you collected them. |
| 2. | Some of your parental flies must have had a new mutation in their germ cells. |
| 3. | The mutation which causes yellow body color is on the X chromosome. |
| 4. | The mutation which causes yellow body color is on the Y chromosome. |
Subtopic: Â Chromosomal Basis of Inheritance: Further Considerations |
 60%
The rediscovery of Mendel’s Laws is credited independently to:
| 1. | de Vries, Correns and von Tschermak |
| 2. | Sutton and Boveri |
| 3. | Garrod |
| 4. | Beadle and Tatum |
Subtopic: Â Chromosomal Basis of Inheritance: Further Considerations |
 90%
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