Which of the following is the most suitable medium for the culture of Drosophila melanogaster?
1. | Cow dung | 2. | Moist bread |
3. | Agar agar | 4. | Ripe Banana |
A dihybrid test cross leads to a frequency of recombinants of 50% in progeny. The most obvious conclusion will be:
1. | The two genes likely are located on different chromosomes. |
2. | All of the offspring have combinations of traits that match one of the two parents. |
3. | Abnormal meiosis has occurred. |
4. | Independent assortment is hindered. |