Question
Question: In Drosophila, the allele for normal grey body clour (G) is dominant to ebony body (g). The followin...
In Drosophila, the allele for normal grey body clour (G) is dominant to ebony body (g). The following table summarises the results of several crosses.
| cross | result |
|---|---|
| strain 1 × gg | all wid type |
| strain 2 × gg | 1 wild type : 1 ebony |
| Strain 3 × gg | All ebony |
| Strain 4 × Gg | 3wild type : 1 ebony |
Which strains BOTH have the genotype Gg?
A
1 and 3
B
1 and 4
C
2 and 3
D
2 and 4
Answer
2 and 4